US Blockade Enforcement of Iranian Ports and Coastlines, Gulf, Strait of Hormuz, Gulf of Oman and Arabian Sea
Issued: 1 day, 3 hours ago
Date Reference Region Category Aggressors Source
2026-10-28 09:25:00 CW Alert 040- (Oct 26) Indian Ocean Advisory Military UKMTO , JMIC
JMIC (Joint Maritime Information Centre) shared a US Naval Forces Central Command (NAVCENT) update on enforcement of the blockade of all Iranian ports and coastlines. The update states that the blockade responds to Iran's continued aggression and attempts to control the Strait of Hormuz. Neutral vessels between neutral ports in the Gulf of Oman and the Strait of Hormuz may be questioned, visited and searched. This applies to vessels carrying neutral cargo, regardless of flag or ownership, and to vessels in ballast. The aim is to confirm their intentions regarding the blockade. Vessels that do not need to transit the area are advised to remain well clear to avoid delays. The update advises neutral vessels to maintain a continuous listening watch on VHF Channel 16, follow all directions from US forces and be prepared to alter course or stop when directed. It also advises them to keep the following documents ready for review on request, as applicable. All must be signed or stamped and in PDF format: Port/Customs Clearance from the last port of call; Bill of Lading (if laden); Certificate of Registry; a signed or stamped Letter of Appointment (not an email) from the agent at the next port of call; receipts or signed contracts for provisions, bunkers, spare parts, repairs and/or crew change at the next port of call; and terminal, port or berth booking confirmation for the next port of call. Vessels transiting the area are advised to plan additional transit time, to allow for increased traffic density and blockade enforcement operations.
Other alerts for

Indian Ocean


Attack on Outbound Crude Oil Tanker, Strait of Hormuz

The UKMTO have reported a time-late report that a crude oil tanker was struck by an unknown projectile whilst transiting outbound through the Strait of …

Attack on Outbound Products Tanker, Strait of Hormuz

The UKMTO have reported a time-late report that a products tanker was struck by an unknown projectile whilst transiting outbound through the Strait of Hormuz …

Attack on a Tanker, Strait of Hormuz

It has been reported that a tanker has been struck on the port side by an unknown projectile while transiting the Strait of Hormuz outbound …

Suspicious Activity, Ras Al Khaimah, UAE

The UKMTO has reported that several Masters in the vicinity of Ras Al Khaimah, UAE (exact position not specified) have reported that they have been …

U.S. Military Forces Disable a Cargo Vessel, Gulf of Oman

It has been reported by the UKMTO that there has been a maritime incident involving a tanker and military forces in the Gulf of Oman …

Attack on a vessel, United Arab Emirates

The UKMTO have recieved multiple third party reports that a vessel has been struck by an unknown projectile apprioximately 13nm West of Al Jazeera, United …

Aerial Attack on a Tanker, Persian Gulf

It has been reported that there has been an aerial attack on a Antigua and Barbuda-flagged tanker whilst drifting in the Persian Gulf, approximately 50nm …

Suspicious Approach on a Container Ship, Red Sea

It has been reported that a Singapore-flagged container ship was involved in a maritime incident whilst underway in the Southern Red Sea, approximately 15nm from …

Attack on a Crude Oil Tanker, Strait of Hormuz

It has been reported that a crude oil tanker was attacked by an unknown projectile while transiting the Straight of Hormuz (exact location not specified). …

Tanker Attacked, Strait of Hormuz

The UKMTO have reported that a tanker has been struck by an unknown projectile whilst underway in the Strait of Hormuz (exact location not specified). …

Tanker Hailed, Strait of Hormuz

The UKMTO has reported that a tanker voyaging the Strait of Hormuz (inbound) received a hail by the IRGC to turn around or be subjected …

Tanker Attacked, Strait of Hormuz

It has been reported that a Panama-flagged crude oil tanker was attacked by an unknown projectile whilst transiting outbound of the the Strait of Hormuz …

Suspicious Explosions Near Tanker, Gulf of Aden

The UKMTO have received a report from a Company Security Officer reporting that a tanker has sighted multiple explosions in close proximity to the vessel …

Two tankers attacked, Strait of Hormuz

The UKMTO have reported two time-late incidents within the Strait of Hormuz (exact positions not specified). A verified source has stated that an LPG tanker …

Attack on Tanker, Strait of Hormuz

The UKMTO has reported that a tanker has been struck by unknown projectile, causing damage to the engine room (exact date, time and position of …

Tanker attacked, Strait of Hormuz

The UKMTO have received a verified time-late report that a crude oil tanker was attacked in the Strait of Hormuz (exact time and position not …

Attack on Crude Oil Tanker, Oman

The UKMTO have received a report from the Master of a crude oil tanker stating that it has been struck on its port side by …

Attack on Tanker, Strait of Hormuz

The UKMTO have reported that a tanker has been struck by an unknown projectile whilst conducting an outbound transit of the Strait of Hormuz (exact …

Attack on Tanker, Strait of Hormuz

The UKMTO have reported that a tanker has been struck by an unknown projectile whilst transiting the Strait of Hormuz, resulting in a fire breaking …

Attack on Yanbu Port, Saudi Arabia

The master of a Liberian-flagged tanker has reported that an aerial attack has occurred at Yanbu port, Saudi Arabia. The Master confirmed that the attack …

Attack on Three Tankers, Strait of Hormuz

The UKMTO have reported that three tankers have been struck by unknown projectiles whilst transiting the Strait of Hormuz on 29 September 2026 (exact time …