`` It was not yet learned who the hijackers are and whether the crewmen are safe , '' the ministry official told Yonhap . Japanese ship carrying 23 crew , including five South Koreans and two Filipinos . Ship carrying chemicals sunk about 96 miles east of Somalia 's Aden port . Condition of crew not immediately known ; Somalia is the world 's top piracy hotspot . S. Korea is sending two ships to waters off Somalia to fight piracy .
Japanese ship carrying 23 crew , including five South Koreans and two Filipinos . Ship carrying chemicals sunk about 96 miles east of Somalia 's Aden port . Condition of crew not immediately known ; Somalia is the world 's top piracy hotspot . S. Korea is sending two ships to waters off Somalia to fight piracy .