Strait of Hormuz — Iran War Intelligence
Daily Status

Strait of Hormuz
and Maritime Chokepoints

June 2, 2026

Data as of 1 June 2026

⚠️ US BLOCKADE ACTIVE
dayshours
⚡ BLUF · Bottom Line Up Front
01
IRGC Missile Strike on MSC Sariska V
The IRGC claimed a cruise-missile attack on the cargo vessel MSC Sariska V roughly 40 nautical miles southeast of Umm Qasr, Iraq — the day's most significant kinetic event.
02
Twelve Transits, Eleven Running Dark
Twelve vessels transited the Strait of Hormuz — five inbound, seven outbound — and eleven ran dark, leaving a single AIS-visible crossing and underscoring sustained blackout conditions.
03
GPS Jamming Surges 43%
384 vessels were jammed in the monitored zone — up 42.9% on the 7-day average — with 4,563 false ship-to-ship meetings recorded across the Arabian Gulf and Gulf of Oman.
04
IRGC Swarm Across Larak Waterway
Imagery captured 30+ IRGC fast craft surging westbound along Hormuz Island and 10+ more inside a stationary fleet of 13 dark tankers — an active IRGC posture across the waterway.
05
Kharg Crude Loading Idle 12 Days
Kharg Island's loading berths stayed clear for a 12th consecutive day (20 May–1 June), with no crude loading detected at Iran's primary export terminal.
06
France Detains Shadow-Fleet Tanker
The French Navy boarded the Russia-linked tanker Tagor (IMO 9282481) off Brest for a flag irregularity — the 13th such European boarding in 18 months — after it switched identity to evade tracking.
Key Metrics
Hormuz Transits
Hormuz Inbound Crossings
5
0 AIS + 5 Dark = 5 total
0
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information. Visible
5
DarkiDarkWhen vessels switch off their AIS transponder, making them undetectable by AIS satellite or terrestrial receivers. / No AIS
↑ +3 vs yesterday
Hormuz Outbound Crossings
7
1 AIS + 6 Dark = 7 total
1
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information. Visible
6
DarkiDarkWhen vessels switch off their AIS transponder, making them undetectable by AIS satellite or terrestrial receivers. / No AIS
↑ +5 vs yesterday
Gulf Fleet Analysis
Vessels in GulfiVessels in GulfAll AIS-transmitting vessels in the area west of Hormuz, covering cargo ships (bulk carriers, containerships, general cargo vessels, passenger ships, etc.) and tankers (crude, product, LNGiLNGLiquefied Natural Gas — natural gas cooled to −162°C for bulk transport as liquid. and LPGiLPGLiquefied Petroleum Gas — propane and butane mixture transported under pressure or at low temperature.).
514
Active vessels tracked
↓ −29 vs yesterday
Dark Activity Events
110
Gulf-wide today
↑ +9%
Vessels Attacked
40
Since conflict start
↑ +1 vs yesterday
Daily Intelligence Summary
Transit Activity

On 1 June 2026, 12 vessels transited the Strait of Hormuz — 5 inbound and 7 outbound. Only one crossing — the San Marino-flagged bulk carrier PILATUS MARINE — was AIS-visible; the remaining 11 ran dark. Inbound traffic was entirely dark Iranian- and Comoros-flagged cargo, including one unidentified hull detected via imagery, while outbound traffic was dominated by small Iranian-flagged cargo craft.

Gulf-Wide Presence

514 cargo ships and tankers were transmitting AIS across the Persian Gulf on 1 June, down from 543 the previous day — with 110 gulf-wide dark events recorded (+9% vs yesterday). The top flag cohorts are Iran (88), Panama (69), Comoros (62), UAE (51) and Liberia (31). Iranian-flagged tonnage retains a clear lead.

Key Intelligence Note

90 vessels in the Gulf carry High smuggling-risk indicators, with a further 84 rated Moderate. The day's most significant development was an IRGC-claimed cruise-missile strike on the cargo vessel MSC Sariska V southeast of Umm Qasr, Iraq, set against imagery of 13 dark tankers lying stationary in the Hormuz–Larak waterway under an active IRGC small-craft posture. Kharg Island's crude-export terminal recorded a 12th consecutive day without loading.

Strait of Hormuz
Inbound & Outbound Transits
5
← Inbound
5 transits · Mixed corridors
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information.: 0 Dark: 5
0
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information. Visible
5
Dark / No AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information.
4 Cargo1 Unidentified
Vessel Classes
MIXED
Corridor · 3N / 1S
Cargo
SEPEHR PAYAM
Iran · Container Vessel · Dark
IRIran
Dark · No AIS · Northern Corridor
Cargo
AMIR BANDAR
Iran · Landing Craft · Dark
IRIran
Dark · No AIS · Northern Corridor
Cargo
FATAHALKAREEM
Comoros · Cargo · Dark
KMComoros
Dark · No AIS · Southern Corridor
Cargo
MILAN
Comoros · Cargo · Dark
KMComoros
Dark · No AIS · Northern Corridor
Unidentified
Unidentified Vessel
Unknown · Dark · Imagery-only
Unknown
Dark · No AIS · Imagery-detected
Source: Windward AI · June 1, 2026 · CSV + Imagery windward.ai
7
→ Outbound
7 transits · Mixed corridors
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information.: 1 Dark: 6
1
AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information. Visible
6
Dark / No AISiAIS · Automatic Identification SystemAutomatic Identification Signal (AIS) — a maritime tracking system that allows a vessel to broadcast information including identity, name, dimensions, position, course and speed over ground, and voyage related information.
1 Bulk6 Cargo
Vessel Classes
MIXED
Corridor · 3N / 4S
Bulk
PILATUS MARINE
San Marino · Bulk Carrier · AIS
SMSan Marino
Low · AIS · Northern Corridor
Cargo
YEKTA
Comoros · General Cargo · Dark
KMComoros
Moderate · No AIS · Northern Corridor
Cargo
SAMIA
Iran · Landing Craft · Dark
IRIran
Dark · No AIS · Southern Corridor
Cargo
SAMIA -1
Comoros · Landing Craft · Dark
KMComoros
Dark · No AIS · Northern Corridor
Cargo
12789
Iran · Cargo · Dark
IRIran
Dark · No AIS · Southern Corridor
Cargo
BARI12127
Iran · Cargo · Dark
IRIran
Dark · No AIS · Southern Corridor
Cargo
AMER 12646
Iran · Cargo · Dark
IRIran
Dark · No AIS · Southern Corridor
Source: Windward AI · June 1, 2026 · CSV windward.ai
Crossings & Destinations
Hormuz Crossings
Last 8 days · Inbound vs Outbound (AIS + Dark)
Inbound
Outbound
Dark
Top Destinations
Oil & crude export by destination
Fleet Composition — 514 Vessels in Gulf
62
Bulk Carriers
89
Product Tankers
17
Chemical Tankers
27
Crude Tankers
31
Container Ships
18
LNGiLNGiLNGLiquefied Natural Gas — natural gas cooled to −162°C for bulk transport as liquid.Liquefied Natural Gas — natural gas cooled to −162°C for bulk transport as liquid. / LPGiLPGLiquefied Petroleum Gas — propane and butane mixture transported under pressure or at low temperature.
MIXED
270
Other
! 90 High Risk
! 84 Moderate
✓ 342 Low Risk
Smuggling Risk Assessment — 514 Vessels in Gulf
Top Flags of Registry
IRIran
88
PAPanama
69
KMComoros
62
AEUAE
51
LRLiberia
31
MHMarshall Isl.
30
KNSt. Kitts & Nevis
22
TGTogo
14
SGSingapore
11
BQNeth. Caribbean
8
MIOC
Windward MIOCiWindward MIOCWindward's Maritime Intelligence Operations Center (MIOC) fuses Maritime AI™, multi-source intelligence, and expert analysts to deliver continuous monitoring, rapid investigations, and reporting that drives strategic, operational, and risk decisions. · Daily Intelligence Highlights · 2 June 2026
MIOC Intelligence Analysis
🚢 Container-Shielded Cargo Vessel Shows Strike Damage
•A ~280 m dark cargo vessel stationary near 26.899°N, 56.319°E with containers stacked the full starboard length — shielding built from its own cargo.
•Scorch marks assessed (not confirmed) as consistent with a prior missile/drone strike.
•At least Day 21 since first imagery confirmation (first documented 11 May 2026).
🔶 Dark Panamax Completes Full Kharg Logistics Cycle
•A 183 m dark Panamax tracked since mid-May shows a complete clandestine cycle: bunkering → dark inbound → Kharg loading → dark outbound → stationary laden.
•Loaded crude at Kharg's T-pier 20 May (first confirmed load after a ~13-day gap), departed within hours.
•Re-observed laden, dark, stationary at 26.956°N, 56.365°E on 1 June.
⚓ Kharg Island — 12 Days Without Crude Loading
•T-pier and eastern crude jetty clear; no vessel alongside either platform — unchanged from 31 May.
•12 consecutive days without crude loading (20 May → 1 June).
•Four tugs/service craft (one dark) anchored southwest; a previously noted cluster of seven dhows could not be relocated.
GPS Jamming — Daily Snapshot
384
JAMMED VESSELS
↑ 42.9% vs. 7-day avg
out of 5,604 transmitting todayiMonitored ZoneThe monitored zone includes the Arabian Gulf as well as the Gulf of Oman — a region where jamming activity is frequently observed.
4,563
FALSE SHIP-TO-SHIP MEETINGSiFalse Ship-to-Ship MeetingsVessels appearing to meet in the same location due to fake GPS/AIS signals being broadcast, when in reality the ships are elsewhere.
GPS Jamming — Trend Over Time
Since Operation Epic Fury (28 Feb)
49,825
UNIQUE VESSELS JAMMED
2,665,579
FALSE SHIP-TO-SHIP MEETINGS
Vessels Attacked
Active Threat Zone · Strait of Hormuz · Arabian Gulf · Gulf of Oman
40
All Incidents
34
Attack
6
Near Miss
› scroll
MSC SARISKA V
Cargo vessel · ~40 nm SE of Umm Qasr, Iraq
NEW
01 Jun · SE of Umm Qasr, Iraq ATTACK

IRGC claimed a cruise-missile strike on the cargo vessel roughly 40 nautical miles southeast of Umm Qasr, Iraq; responsibility asserted publicly.

OLYMPIC LIFE
IMO 9844277 · VLCC 333 m · Marshall Islands
NEW
26 May · ~60 nm E of Muscat ATTACK

Aft port-side explosion on Greece-owned VLCC during third consecutive ADNOC call at Fujairah; vessel sailing away from area.

CMA CGM SAN ANTONIO
IMO 9294173 · Container 222 m · Malta
05 May · Strait of Hormuz ATTACK

Struck by a land-attack cruise missile while transiting the Strait; several crew injured and evacuated for treatment, two later repatriated. No pollution reported.

MV BARAKAH
IMO 9902615 · VLCCiVLCCVery Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz. 333 m · ADNOC
04 May · Strait of Hormuz ATTACK

ADNOC VLCCiVLCCiVLCCVery Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz.Very Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz. struck by 2 Iranian drones in Hormuz transit, in ballast; UAE MFA condemned as a "flagrant breach" of UNSCR 2817.

HMM NAMU
IMO 1039292 · Bulk Handysize · Panama
04 May · OPLiOPLOutside Port Limits — anchorage area beyond official port boundaries, used for vessel waiting, cargo transfers, or ship-to-ship operations. Umm Al Quwain ATTACK

Engine-room explosion at 11:40 UTC, 36 nm N of Dubai; 24 POBiPOBPersons on Board — total crew count aboard a vessel. safe; suspected IRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping.iIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. strike or drifting mine.

ES INTEGRITY
IMO 9736963 · Bulk 34,512 DWT · Panama
ASSESSED
04 May · 14 nm W Mina Saqr ATTACK

Vessel on fire ~16:00 UTC; AIS dark 2.5 h prior — UKMTO did not name the hull; Windward ID is candidate-level.

MSC FRANCESCA
IMO 9401116 · Container 363m · Panama
SEIZED
22 Apr · 15 nm NE Oman ATTACK

IRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. fire at 04:55 UTC; escorted to Iran.

EPAMINONDAS
IMO 9153862 · Container 300m · Liberia
SEIZED
22 Apr · ~8 nm W Iran ATTACK

Small-arms/RPG fire; seizure disputed.

EUPHORIA
IMO 9235828 · Container feeder · Panama
22 Apr · ~8 nm W Iran ATTACK

Same-window fire; vessel reached safety.

MEIN SCHIFF 4
IMO 9678408 · Cruise · Malta
18 Apr · off Oman NEAR-MISS

IRGCiIRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping.Islamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. VHF threat during Abu Dhabi breakout; transited unharmed.

CMA CGM EVERGLADE
IMO 9894985 · Container 366m · France
18 Apr · ~25 nm NE Oman ATTACK

Rocket strike at 11:25 UTC; minor deck damage, reversed course with CMA CGM fleet.

SANMAR HERALD
IMO 9330563 · VLCCiVLCCVery Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz.iVLCCiVLCCVery Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz.Very Large Crude Carrier — tanker class carrying 200,000–320,000 deadweight tonnes of crude oil. Among the largest vessel types transiting Hormuz.+ · India
18 Apr · ~20 nm NE Oman ATTACK

Fired on by IRGCiIRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping.Islamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. gunboats at 09:20 UTC; reversed course, crude undelivered.

BHAGYA LAXMI
IMO 9351816 · Container · Antigua & Barbuda
18 Apr · ~25 nm NE Oman NEAR-MISS

Went AIS dark 3 hrs before the 11:25 UTC strike; reappeared north of Muscat — Hormuz crossing completed.

JAG ARNAV
IMO 9705354 · Bulk Carrier · India
NEAR-MISS
18 Apr · ~3 nm off Omani coast NEAR-MISS

Projectile splash at 12:08 UTC; aborted transit and reversed course. No damage.

QINGDAO STAR
Container · Marshall Islands
MAERSK T/C
07 Apr · S of Kish Island ATTACK
Struck by Qadir cruise missile ~25nm S of Kish Island. Hull damage above waterline. IRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping.iIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. claimed responsibility, called vessel "Israeli ship." Time-chartered by Maersk; previously by ZIM until Oct 2023. Crew safe, continued under own propulsion.
MSC ISHYKA
IMO 9154206 · Container · Liberia
LOW RISK
04 Apr · Bahrain ATTACK

Struck by IRGCiIRGCIslamic Revolutionary Guard Corps — Iran's elite military force responsible for maritime operations in the Persian Gulf, including vessel seizures and attacks on commercial shipping. drone while moored at Khalifa Bin Salman Port, Bahrain.

AQUA 1
IMO 9573660 · Oil Products Tanker · Panama
MODERATE
01 Apr · Ras Laffan (Qatar) ATTACK

Struck by Iranian cruise missile 17 nm north of Ras Laffan; 2 additional missiles intercepted by Qatari air defenses; unexploded ordnance in engine room.

AL SALMI
IMO 9534793 · Crude Oil Tanker · Kuwait
LOW RISK
30 Mar · ~31 nm NW of Dubai ATTACK

Struck by Iranian drone at anchor; fire on starboard side, extinguished by Mar 31.

HALUL 50
IMO 9602796 · Service Vessel · Qatar
LOW RISK
19 Mar·Arabian GulfATTACK

Struck by falling debris 4 nm east of Ras Laffan.

GAS AL AHMADIAH
IMO 9849629 · Tanker · Kuwait
LOW RISK
16 Mar·Gulf of OmanATTACK

Projectile struck vessel while underway.

SOURCE BLESSING
IMO 9243198 · Container · Liberia
MODERATE
12 Mar·Arabian GulfATTACK

Projectile struck accommodation block causing fire; crew safe.

ZEFYROS
IMO 9515917 · Tanker · Malta
—
11 Mar·N. Arabian GulfATTACK

Struck during STS operations causing a significant fire.

MAYUREE NAREE
IMO 9323649 · Bulk Carrier · Thailand
MODERATE
11 Mar·Strait of HormuzATTACK

Projectile strike caused engine room fire; crew evacuated by Omani Coast Guard.

STAR GWYNETH
IMO 9301031 · Bulk Carrier · Marshall Islands
HIGH RISK
11 Mar·Arabian GulfATTACK

Projectile strike caused breach in cargo hold/ballast tanks; vessel listing.

SAFESEA VISHNU
IMO 9327009 · Tanker · Marshall Islands
LOW RISK
11 Mar·N. Arabian GulfATTACK

Struck during STS operations; fire and casualty reported.

GH KAHLO
IMO 9617521 · Bulk Carrier · Bermuda
HIGH RISK
10 Mar·Arabian GulfNEAR MISS

Master reported a splash and loud bang in close proximity.

ONE MAJESTY
IMO 9424912 · Container · Japan
MODERATE
10 Mar·Arabian GulfATTACK

Struck by projectile at stern causing potential structural damage.

ARABIA III
IMO 8771332 · Offshore Rig · Liberia
LOW RISK
07 Mar·Arabian GulfATTACK

Drilling rig struck by UAV; injuries and evacuation reported.

MUSSAFAH 2
IMO 9522051 · Tug · UAE
LOW RISK
06 Mar·Strait of HormuzATTACK

Struck by projectiles while supporting SAFEEN PRESTIGE rescue.

SAFEEN PRESTIGE
IMO 9593517 · Container · Malta
LOW RISK
04 Mar· Strait of Hormuz ATTACK

Explosion near stern following approach by small craft; crew abandoned vessel.

MSC GRACE
IMO 9987366 · Container · Liberia
HIGH RISK
04 Mar·Arabian GulfNEAR MISS

Projectile detonated ~1 NM from vessel while drifting.

SONANGOL NAMIBE
IMO 9325049 · Tanker · Bahamas
LOW RISK
04 Mar·N. Arabian GulfATTACK

Explosion onboard causing cargo hold damage and oil leakage.

PELAGIA
IMO 9433626 · Bulk Carrier · Malta
HIGH RISK
03 Mar· Gulf of Oman NEAR MISS

UAV observed before impacting water nearby; no damage reported.

GOLD OAK
IMO 9806342 · Bulk Carrier · Panama
LOW RISK
03 Mar· Gulf of Oman ATTACK

Struck by projectile at anchor causing structural damage.

LIBRA TRADER
IMO 9562673 · Tanker · India
LOW RISK
03 Mar· Gulf of Oman ATTACK

Struck by projectile while anchored; damage reported.

SKYLIGHT
IMO 9330020 · Tanker · Palau
SANCTIONED
01 Mar · Strait of Hormuz ATTACK

Struck by projectile at anchor causing fire; crew evacuated with injuries.

HERCULES STAR
IMO 9916135 · Tanker · Gibraltar
HIGH RISK
01 Mar· Strait of Hormuz ATTACK

Struck by projectile while transiting outbound; fire reported onboard.

OCEAN ELECTRA
IMO 9402782 · Bulk Carrier · Liberia
HIGH RISK
01 Mar· Arabian Gulf ATTACK

Projectile detonated in close proximity during transit; no damage reported.

MKD VYOM
IMO 9284386 · Tanker · Marshall Islands
HIGH RISK
01 Mar· Gulf of Oman ATTACK

Struck by USV while transiting northbound; fire and one fatality reported.

STENA IMPERATIVE
IMO 9666077 · Tanker · United States
—
01 Mar· Bahrain ATTACK

Struck by two projectiles while in drydock; fire and damage reported.

Live Activity · Strait of Hormuz
Attacked Vessels
Source: Windward AI · May 2026
Windward MIOC · Daily Intelligence

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