GNSS Interference Report
Issued: 11 months, 1 week ago
Date Reference Region Category Aggressors Source
22 Nov 2023 - 21:20 CW GNSS 167 Indian Ocean GNSS Interference NAVCEN
USER: USCG LANTAREA was notified by the Health, Safety, Security, Quality, and Environmental (HSSQE) Manager for Seabulk that the U.S. flagged M/V GREEN COVE (IMO 9181560) experienced suspected GPS spoofing while on inbound transit to Aqaba. The GPS information for the ship, the Captain’s GPS watch, and Polestar all show that the vessel is in Cario. HSSQE Seabulk Group will continue to monitor. NAVCEN: The GPS Operations Center reviewed the GPS Constellation and Control Segment, there are no known anomalies that might affect GPS signal integrity at the time and vicinity of the reported problem. Space weather was reviewed and found unlikely to have impacted GPS performance. There were no authorized GPS tests in the area. No correlating reports from inter-agency partners. No additional information.
Other alerts for

Indian Ocean


Attack on a Cargo Ship, Red Sea

It has been reported that there has been an attack on a vessel approximately 51nm Northwest of Mocha, Yemen. A Maltese-flagged cargo vessel has informed …

Unmanned Aerial Vehicle Destroyed, Red Sea

Open source states that the US Navy successfully engaged and destroyed one Houthi Unmanned Aerial Vehicle over the Red Sea (exact position not specified). No …

Suspicious approach on a cargo vessel, Gulf of Aden

A Marshall Islands-flagged cargo vessel has reported being approached by a small craft whilst underway, approximately 177NM Southeast of Nishtun, Yemen (exact position not specified). …

Five Unmanned Aerial Vehicles Destroyed, Red Sea

Open source reports that the US Navy engaged and destroyed five unmanned aerial vehicles over the Red Sea (exact position not specified).

Suspected Attack on a Container Ship, Indian Ocean

The UKMTO have been informed by a Master of a vessel, that there has been a suspected Unmanned Aerial Vehicle attack on the vessel while …

Attack on a Tanker, Red Sea

It has been reported that there has been an attack on a Panamanian flagged, tanker approximately 14nm Southwest of Al Mukha, Yemen (exact position not …

Attack on a Container Ship, Gulf of Aden

It has been reported that there has been an attack on a vessel approximately 15nm Southwest of Aden, Yemen (exact position not specified). The authorities …

Unmanned Aerial Vehicle, unmanned surface vessel and one anti-ship ballistic missile launched in the Gulf of Aden

Open source reports state that one anti-ship ballistic missile was launched from a Houthi controlled area of Yemen into the Gulf of Aden (exact position …

Unmanned Aerial Vehicle Destroyed, Red Sea

Open source reports state that the Greek frigate HYDRA engaged two Unmanned Aerial Vehicles whilst providing protection to a merchant vessel in the Gulf of …

Attack on a Container Ship, Gulf of Aden

It has been reported that there has been an attack on a merchant vessel approximately 72nm Southeast of Djibouti. The authorities are investigating. UPDATE: Further …

Live missile firing exercise, Arabian Sea

It has been reported by the UKMTO that live missile firing will be conducted from 24th April 2024 0900UTC to the 25th April 2024 1400UTC …

Live weapon firing, Pakistan coast

It has been reported by the UKMTO that live weapon firing is scheduled between 0300-1200UTC on 24th and 25th of April 2024 in area bounded …

Irregular activity towards a container ship, Arabian Sea

It has been reported that there has been a suspicious approach on a Panama-flagged container vessel whilst underway approximately 50nm Southeast of Socotra. Three skiffs …

Security Notification

The UKMTO are aware of media reports of an Israeli military strike against Iran. Vessels transiting the Arabian Gulf and Western Indian Ocean may observe …

GNSS Interference Report

USER: Bab El Mandeb strait NAVCEN: The GPS Operations Center reviewed the GPS Constellation and Control Segment, there are no known anomalies that might affect …

Anti-ship ballistic missile launched toward Gulf of Aden

Open source reports state that an anti-ship ballistic missile was launched from Houthi controlled territory in Yemen toward the Gulf of Aden (exact position unknown).There …

Container vessel seized by IRGC, Gulf of Oman

The UKMTO have reported that a vessel has been boarded by unauthorised persons 50nm Northeast of Fujairah, United Arab Emirates (exact position not specified). The …

GNSS Interference Report

USER: On 11th April, 1838 UTC, MT Toya while approaching the port of Ras Tanura, KSA experienced loss of position (suspected GPS interference) which was …

Anti-Ship Missile Destroyed, Red Sea

Open-Source reports state that United States Central Command forces successfully intercepted and destroyed one anti-ship ballistic missile over the Red Sea, launched from Houthi controlled …

GNSS Interference Report

USER: Our vessel on entering Gulf of Aqaba experiencing intermittent GPS spoofing & later after an hour GPS signal has been completely lost. Vessel using …

Unmanned Aerial Vehicles Intercepted, Gulf of Aden

Open source reports state that two Unmanned Aerial Vehicles (UAV) launched from Houthi territory, Yemen have been engaged and destroyed over the Gulf of Aden …