HANOI, Vietnam (AP) — A Vietnamese oil tanker missing for a week was released by pirates who stormed the ship and siphoned off some of its cargo, a crew member said Thursday.

The deputy captain of the Sunrise 689, Pham Van Hoang, said a group of more than 10 men, who he thought were Indonesian, armed with guns and knives in two speedboats boarded the tanker shortly after it left Singapore for Vietnam on Oct. 2.