Three crew members are believed to have been kidnapped from a Togolese-flagged bunker tanker off Nigeria.
A possible boarding of the 400-dwt Stelios K (built 1995) by pirates was reported last Monday, 40 nautical miles (74 km) south of Lome in Togo, after it lost contact with its owner.
The incident was confirmed as a rare hijacking two days later.
