Two ships off the coast of the United Arab Emirates broadcast warnings Tuesday that they had lost control of their steering under unclear circumstances as authorities reported "an incident" was underway in the area.

It wasn't immediately clear what was happening off the coast of Fujairah in the Gulf of Oman.

The two vessels — an oil tanker called the Golden Brilliant and an asphalt carrier called the Kamdhenu — reported via their Automatic Identification System trackers that they were "not under command," according to MarineTraffic.com That typically means a vessel has lost power and can no longer steer.

Map of Middle Eastern United Arab Emirayes (UAE)

Two vessels off the coast of the United Arab Emirates have lost control of their steering, prompting them to send warning signals via their Automatic Identification System trackers (Google Earth)

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The British military’s United Kingdom Maritime Trade Operations only warned ships that "an incident is currently underway." An Oman Royal Air Force Airbus C-295MPA, a maritime patrol aircraft, was flying over the area where the ships were, according to data from FlightRadar24.com.

The U.S. military's Mideast-based 5th Fleet and the British Defense Ministry did not immediately return calls for comment. The Emirati government did not immediately acknowledge the incident.

The event comes just days after a drone struck an oil tanker linked to an Israeli billionaire off the coast of Oman, killing two crew members. The West blamed Iran for the attack, which marked the first known assault to have killed civilians in the years long shadow war targeting commercial vessels in the region.

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Iran denied playing any role in the incident, though Tehran and its allied militias have used similar "suicide" drones in attacks previously.

Israel, the United States and United Kingdom vowed a "collective response" to the attack, without elaborating.