Maritime Security Report: 21st - 27th September 2026
This week saw eleven incidents globally, including: Black Sea, Caribbean Sea, South China Sea, Red Sea, and Strait of Hormuz.
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Major Incidents Include:
STRAIT OF HORMUZ:
Persistent Projectile Threat to Commercial Shipping: Three merchant vessels were hit by unidentified projectiles or debris in the Strait, including a fatal strike on a bulk carrier off Musandam that killed one Indian crew member. No group has claimed responsibility, and Iran's claimed seizure of a US underwater drone signals continued tension over control of the corridor.
EUROPE:
Black Sea: Russian Strikes on Merchant Vessels: Russian forces struck at least three cargo vessels in and around Odesa, killing one ship's captain, underscoring the continued risk to Ukraine-bound shipping.
SOUTH CHINA SEA:
Rising China–Philippines Confrontation: Chinese Coast Guard and PLA Navy vessels blocked a Philippine resupply mission to Second Thomas Shoal, followed by Chinese naval and air exercises around Scarborough Shoal, increasing the risk of maritime incidents in disputed waters.
RED SEA:
Houthi Threat to Port Infrastructure: Houthi missiles and drones targeted Saudi Aramco's export terminal at Yanbu. Saudi Arabia reported intercepting the missiles and no vessels were affected, but Red Sea port infrastructure remains exposed.
South China Sea:
22 September / Distress:
An MSC container ship was abandoned in the South China Sea, about 300 km east of Vietnam. All 25 crew were rescued unharmed, and the vessel is now under tow to Vung Tau. The cause remains unclear.
24 September / Blockade:
Chinese Coast Guard and PLA Navy vessels blocked a Philippine resupply mission to Second Thomas Shoal in the Spratly Islands. Manila reported dangerous manoeuvres that risked a collision, while Beijing called the mission a provocation.
27 September / Military Activity:
China conducted joint naval and air exercises around the disputed Scarborough Shoal, alongside China Coast Guard drills on boarding and forced towing. The drills raise the risk of maritime confrontation with the Philippines.
Europe:
21 September / UAV Strike:
Russian drones struck two dry cargo vessels in the Odesa region overnight on 20–21 September, one in port and one at sea. Russia claimed, without verification, that both were carrying military supplies. Flags, damage and casualties remain unconfirmed.
22 September / Strike:
Russian forces struck an Antigua and Barbuda-flagged cargo vessel in the Black Sea, killing its Ukrainian captain. The remaining crew were evacuated by the Ukrainian Navy.
Strait of Hormuz:
21 September / Strike:
A crude oil tanker was struck by an unknown projectile while entering the Strait of Hormuz. Two crew suffered minor injuries, and the vessel continued under its own power with no environmental impact reported. Authorities are investigating.
21 September / Strike:
An LPG tanker was hit by debris from unknown projectiles in the Strait of Hormuz, with no injuries or environmental impact reported. The vessel is continuing to its next port of call, and authorities are investigating.
23 September / Strike:
A bulk carrier was struck by unidentified projectiles off Oman's Musandam Governorate, killing one Indian crew member. The Royal Navy of Oman evacuated the surviving crew, and no group has claimed responsibility.
27 September / War Risk:
Iran's IRGC Navy claimed to have seized a US unmanned underwater vehicle in the Strait of Hormuz, alleging it was being used for espionage. The US military denied the claim, which remains unverified.
Caribbean:
21 September / Drug Smuggling:
The US Coast Guard offloaded an estimated USD 57 million in illicit drugs at Port Everglades, Florida, following two interdictions in the Caribbean Sea.
Red Sea:
24 September / War Risk:
Houthi missiles and drones targeted Saudi Aramco's Red Sea export terminal at Yanbu. Saudi Arabia reported intercepting the missiles, and no vessels were affected.
Operational Guidance
Operators Should:
Watch for Air & Sea Projectiles: Maintain sharp lookouts for UAVs, missiles and USVs in the Strait of Hormuz and the Black Sea, particularly near Ukrainian ports.
Exercise Caution in Chokepoints: Transit the Strait of Hormuz only when necessary and authorised, and report any suspicious activity to UKMTO immediately.
Avoid Disputed Features: Maintain safe distance from Second Thomas Shoal and Scarborough Shoal, where Chinese naval and coast guard activity is heightened.
Monitor Official Advisories: Keep watch on VHF Channel 16 and track UKMTO, JMIC and flag-state updates for sudden navigation warnings.
Region | Threat Level | Assessment |
Europe (Black Sea) | High | Russian strikes killed a Ukrainian captain and hit at least three cargo vessels in and around Odesa, continuing a pattern of fatal attacks on Ukraine-bound shipping just days after another deadly strike. The consistency and lethality of these strikes keep the region at sustained high risk. |
Red Sea | Moderate | Houthi missiles targeted Saudi Aramco's Yanbu export terminal, but all missiles were intercepted with no impact on vessels or ports confirmed. This shows continued intent and capability against Red Sea infrastructure, but the attack was successfully defended against this time. |
South China Sea | High | China blocked a Philippine resupply mission with "compulsory measures" threats and followed up with naval/air exercises and coast guard boarding drills around Scarborough Shoal, both deliberate shows of force. The abandoned MSC Hermes III adds an unrelated but notable distress incident, though the diplomatic confrontation is the dominant driver of risk here. |
Strait of Hormuz | Extremely High | Three separate vessels were struck by unidentified projectiles or debris in a single week, including a fatal double strike on the bulk carrier Cape Dao that killed an Indian crew member. Iran's claimed seizure of a US underwater drone adds a direct state-confrontation dimension on top of the unclaimed attacks on shipping. |
Caribbean | Low | The week's only development was a large but routine US Coast Guard drug interdiction, not a threat to commercial shipping. This reflects ongoing counter-narcotics enforcement rather than any risk to vessels themselves |
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