High waves sank a wooden boat in eastern Indonesia, killing 15 passengers and leaving 15 more missing, the navy said on Tuesday.
Rescue operations have saved 29 of the 59 passengers after the boat went down late Monday off Halmahera island, North Maluku province, 1,510 miles (2,430 kilometers) east of Jakarta, Marine Private Iwan Widodo told The Associated Press from Ternate, capital of North Maluku.
"Bad weather and high waves caused the sinking," Widodo said. "We hope to find more of the rest of the people who are still missing."
Ferries are a main source of transportation in Indonesia, the world's largest archipelago nation with more than 17,000 islands and a population of 235 million. Sea accidents are common due to overcrowding and poor safety standards.