UKMTO Advisory - Caution regarding military action in the Arabian Gulf, Gulf of Oman, North Arabian Sea and the Strait of Hormuz
Issued: 19 hours ago
Date Reference Region Category Aggressors Source
2026-02-28 07:00:00 CW Alert 012- (Feb 26) Indian Ocean Advisory Military UKMTO
The UKMTO has reported significant military activity in the following areas; Arabian Gulf, Gulf of Oman, North Arabian Sea and the Strait of Hormuz. Mariners should be aware of the potential for elevated electronic interference, including disruption to AIS and other navigational and communication systems. UPDATE: There have been multiple reports of vessels operating in the Arabian Gulf stating that VHF Channel 16 broadcasts have claimed that the Strait of Hormuz (SoH) has been closed. These reports cannot be independently verified at this time. Mariners are advised that VHF broadcasts or statements indicating closure of the Strait of Hormuz are not legally binding and do not constitute a lawful restriction on navigation under international law, including the United Nations Convention on the Law of the Sea (UNCLOS), unless implemented and enforced in accordance with applicable legal frameworks. All vessels should: • Transit with caution and conduct enhanced risk assessments. • Maintain a listening watch on VHF Channel 16 and be prepared to respond to hails. • Be alert to the risk of misidentification and the potential effects of electronic interference. • Where practicable, vessels may consider increasing distance from military units to reduce risk. • Report suspicious activity, kinetic activity, electronic interference, or abnormal VHF communications to UKMTO or MSCIO • Where practicable, vessels should maintain a standoff of 30 nautical miles from U.S. military vessels to reduce the risk of being mistaken as a threat and are strongly encouraged to maintain close contact with Naval Forces Central Command (NAVCENT) The situation remains extremely dynamic and further updates as information becomes available. Vessels are advised to transit with caution and report any suspicious activity, kinetic activity, or electronic interference to UKMTO.
Other alerts for

Indian Ocean


Unmanned Aerial Vehicle Activity, Red Sea

It has been reported that a Wallis Futuna Island-flagged passenger ship was approached by four Unmanned Aerial Vehicles approximately 97nm Northwest of Yanbu. Later at …

Suspicious approach on a vessel, Gulf of Aden

The Master of a vessel has reported to the UKMTO that they were approached whilst underway approximately 100nm East of Aden, Yemen (exact position not …

Attempted Robbery on a Tanker, Mozambique

It has been reported that there has been an attempted robbery onboard a tanker whilst anchored at Beira anchorage, Mozambique. Duty crew sighted eight perpetrators …

UKMTO Notice - Live Firing Exercise, Pakistan Coastline

It has been reported by the UKMTO that the Pakistani Navy have notified that Naval ships will conduct live surface and subsurface firing between 0300 …

UKMTO Notice - Combined Task Force 151 conducts Focused Operation Sea Spirit

The UKMTO has issued a notice informing that a Counter-piracy Focused Operation by Combined Maritime Forces’ Counter-piracy Combined Task Force 151 in coordination with European …

UKMTO Notice - Potential Collateral Damage and GPS Interference, Red Sea

The UKMTO has issued a notice from the Joint Maritime Information Centre, advising that, whilst the Houthi's continue to launch retaliatory attacks on U.S. Naval …

GPS Interference, Red Sea

The UKMTO has received reports from several vessels that have experienced GPS interference in the Red Sea area. The disruptions have lasted for several hours …

UKMTO Notice - Military Live Firing Exercise, Pakistan Coastline

It has been reported by the UKMTO that Naval ships will conduct live firing practice from 0300 - 1700 UTC from the 01st - 04th, …

Robbery on a container vessel, India

It has been reported that a robbery took place on a container vessel whilst anchored at Kandla anchorage, India. Duty crew spotted up to seven …

UKMTO Notice - Collateral Damage Danger in Proximity to American Naval Vessels

The UKMTO has issued a notice from the Joint Maritime Information Centre, advising that, following retaliatory attacks by the Yemeni Armed Forces on U.S. Naval …

UKMTO Notice - Live Surface and Subsurface Firing, Arabian Sea

It has been reported by the UKMTO that Naval ships will conduct live surface and subsurface firing between 0500 UTC on the 20th of March …

UKMTO Notice - Live Firing Exercise, Pakistan Coastline

It has been reported by UKMTO that Naval ships will conduct live firing practice between 0300 - 1600 UTC from the 19th to the 20th …

Fishing vessel hijacked, Somalia

The Puntland authorities have reported that a Yemeni-flagged fishing vessel has been hijacked whilst operating off the coast of Durdura, Somalia (exact position not specified). …

UKMTO Notice - Live Firing Exercise, Red Sea

It has been reported by the UKMTO that live firing practice will be conducted between 0700 UTC to 1300 UTC from 17th - 19th March …

GPS Interference, Strait of Hormuz

The UKMTO has received reports from several vessels that have experienced GPS interference in the Strait of Hormuz. The disruptions have lasted for several hours …

UKMTO Notice - Military Live Firing Exercise, Pakistan Coastline

It has been reported by the UKMTO that Naval ships will conduct live firing practice between 0400 - 1700 UTC from the 03rd - 07th, …