UKMTO Advisory - Escalating Tensions in the Arabian Gulf, Gulf of Oman and Straits of Hormuz
Issued: 3 days ago
Date Reference Region Category Aggressors Source
2025-06-11 12:00:00 CW Alert 012- (Jun 25) Indian Ocean Advisory Military UKMTO
It has been reported by the UKMTO that they are aware of increased tensions within the region which could lead to an escalation of military activity having a direct impact on mariners. Vessels are advised to transit the Arabian Gulf, Gulf of Oman and Straits of Hormuz with caution and are to report incidents or suspicious activity to UKMTO in accordance with BMP MS. UPDATE: The UKMTO has issued an update from the Joint Maritime Information Centre (JMIC) citing open-source media reports that Israeli authorities forwarded an ultimatum to both Iran and the United States, stating that a nuclear agreement must be reached by Sunday between the two countries. If not, Israeli leadership has an intent to initiate military action against Iran. The statement introduces a short operational pause until Sunday to allow diplomatic efforts. Currently, there is no direct evidence that commercial shipping is being targeted. However, given the proximity of regional flashpoints to major maritime routes and chokepoints, the potential for rapid escalation involving the maritime environment should not be discounted. The JMIC will monitor the situation closely and provide timely updates accordingly should there be any changes.
Other alerts for

Indian Ocean


Attack on a bulk carrier, Gulf of Aden

The UKMTO have received a late report informing that a vessel was attacked whilst underway 53nm South of Aden, Yemen. The Master of the vessel …

Attack on a container vessel, Arabian Sea

It has been reported to the UKMTO that a vessel has been attacked 246nm Southeast of Nishtun, Yemen (exact position not specified). The authorities are …

Distress call made by a tanker, Arabian Sea

It has been reported by the UKMTO that a distress call from a vessel has been received approximately 96nm Southeast of Nishtun, Yemen. The authorities …

Attack on a bulk carrier, Red Sea

It has been reported by the UKMTO that a vessel has been attacked 65nm West of Hodeidah, Yemen (exact position not specified). The authorities are …

Three Unmanned Surface Vessels Destroyed, Red Sea

Open-source reports state that in the past 24 hours U.S. Central Command forces have successfully destroyed three Unmanned Surface Vehicles in the Red Sea (exact …

Attack on a bulk carrier, Gulf of Aden

The Master of a vessel reported to the UKMTO that it was attacked whilst underway approximately 126nm East of Aden, Yemen. Clearwater have also received …

Unmanned Surface Vessels and Unmanned Aerial Vehicles destroyed, Red Sea

Open-source reports state that in the past 24 hours U.S. Central Command forces have destroyed four Unmanned Surface Vessels and two Unmanned Aerial Vehicles in …

Unmanned Surface Vessels destroyed, Red Sea

Open-source reports state that in the past 24 hours U.S. Central Command forces have destroyed two Unmanned Surface Vessels in the Red Sea (exact time …

Unmanned Aerial Vehicles destroyed, Gulf of Aden

Open-source reports state that in the past 24 hours U.S. Central Command forces have destroyed eight Iranian-backed Houthi Unmanned aerial Vehicles in a Houthi controlled …

GNSS Interference Report

USER: Vessel Received GPS disruption from past 1 hour. NAVCEN: The GPS Operations Center reviewed the GPS Constellation and Control Segment, there are no known …

Unmanned Surface Vessels and Unmanned Aerial Vehicle destroyed, Red Sea

Open-source reports state that in the past 24 hours U.S. Central Command forces have destroyed an Unmanned Surface vessel in a Houthi controlled area of …

Attack on a tanker, Bab El Mandeb

It has been reported by the UKMTO that a vessel has been attacked 40nm South of Mocha, Yemen. The authorities are investigating. UPDATE: The Master …

Unmanned Surface Vessels and Unmanned Aerial Vehicle destroyed, Red Sea

Open-source reports state that in the past 24 hours U.S. Central Command forces have destroyed two Houthi Unmanned Surface Vessels in the Red Sea. It …

GNSS Interference Report

USER: All GPS receivers (3 GPS fitted on board) lost signal: received alarm on all Navigation Equipment: No GPS Fix. Disruption last exceptionally long (over …

Suspicious activity involving a fishing vessel, Somalia

The IMB have been informed by MSCHOA that a Yemeni-flagged fishing dhow has requested a rescue approximately 200nm Southeast of Harardhere, Somalia. The crew have …