Thirteen fishermen were missing off the coast of northern Japan on Monday after their boat sank following a collision with a large cargo vessel, the Japanese coastguard said. The 119-ton tuna-fishing boat, Horiei Maru, had 22 crew members on board – 17 Japanese and five Indonesians – when it collided with the Panamanian-flagged 25,000-ton cargo ship japan early on Monday. The coastguard said it received a distress signal from the fishing boat at around 2.30am after the collision some 900 kilometres off Miyagi prefecture. Nine crew were rescued by another ship, the coastguard said in a statement, adding search operations were ongoing. The cargo vessel was undamaged and its crew of 21 was said to be safe.