A tanker is missing off the coast of Gabon with 17 Georgian sailors onboard, officials said Tuesday.
The ship "disappeared" from tracking screens on August 14, the source said, while regional military officials said the potential search area was between the Gabonese coast and the Sao Tome and Principe archipelago.
Specialist websites list the 121-metre (396-feet) ship, the Pantelena, as a 7,000-tonne, 12-year-old dual-purpose oil or chemical tanker.
The vessel is Panamanian-flagged and owned by a Greek company, Lotus Shipping Co. Ltd.
The Georgian foreign ministry in Tbilissi, in a statement issued last Friday, said there were concerns for 17 Georgian sailors onboard and a search operation was being conducted with the help of the British maritime authorities.
Gabon lies on the southern part of the Gulf of Guinea -- the great bend in the coastline of West African -- where pirates are a notorious problem for shipping.
The Pantelena "turned off its locator beacon," a device that tracks a vessel's position by satellite, a regional military official said.
"The first thing that pirates do when they board a ship is to cut off this beacon."
A crew member aboard a ship sailing between Libreville and Port-Gentil, Gabon's economic hub, told AFP: "We received a distress message over the radio and we alerted the Gabonese navy."
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