Tanker in Gulf of Oman boarded by ‘unauthorized’ people as tensions high across Mideast waterways

DUBAI, United Arab Emirates (news agencies) — An oil tanker in the Gulf of Oman was boarded by “unauthorized” people in military uniforms early on Thursday morning, an advisory group run by the British military and a private intelligence firm warned.

Details over the incident remained unclear.

The British military’s United Kingdom Maritime Trade Operations, which provides warnings to sailors in the Middle East, said the incident began early in the morning in waters between Oman and Iran in an area transited by ships coming in and out of the Strait of Hormuz, the narrow mouth of the Persian Gulf through which a fifth of all oil traded passes.

The U.K. military-run group described receiving a report from the ship’s security manager of hearing “unknown voices over the phone” alongside with the ship’s captain. It said that further efforts to contact the ship had failed.

The private intelligence firm Ambrey said that “six military men” boarded the ship, which it identified as the oil tanker St. Nikolas. It said that the men had covered the surveillance cameras as they boarded.

The St. Nikolas is associated with the Greek shipping company Empire Navigation. The Athens-based firm did not immediately respond to a request for comment.

In September, Empire Navigation pleaded guilty to smuggling sanctioned Iranian crude oil and agreed to pay a $2.4 million fine over a case involving the tanker Suez Rajan, which carried some 1 million barrels of oil.

The U.S. Navy’s 5th Fleet, which patrols the Mideast, did not immediately respond to a request for comment over the incident. Iran and Oman did not immediately acknowledge the boarding.

Since the collapse of Iran’s nuclear deal, waters around the strait have seen a series of ship seizures by Iran, as well as assaults targeting shipping that the Navy has blamed on Tehran. Iran and the Navy also have had a series of tense encounters in the waterway, though recent attention has been focused on the Iranian-backed Houthi rebels of Yemen attacking ships in the Red Sea amid Israel’s war on Hamas in the Gaza Strip.

The United States and its allies also have been seizing Iranian oil cargoes since 2019. That has led to a series of attacks in the Mideast attributed to the Islamic Republic, as well as ship seizures by Iranian military and paramilitary forces that threaten global shipping.