sank

"There is a very small quantity of fuel that has leaked out of the ship, but we already have rubber oil booms in place around the tanker," port master Rocky Ahmad Suherman told AFP, adding that the fuel was thought to be coming from the tanker's engine and not the tank.
He said authorities were coordinating with the ship's owner as they tried to work out the best way to salvage the ship. The tanker was operated by local agent PT Pasifik Selatan.
An investigation was underway to determine the cause of the mishap and the ship's captain remained under questioning, Suherman said.
The state news agency Antara, citing a spokesman for the port administration, reported on Tuesday that preliminary results of the investigation had showed that the ship's ballast had not been properly filled.