Japan\'s coastguard was searching Friday for six crew of a Japanese cargo ship that capsized after colliding with a Sierra Leone-registered vessel. The Eifukumaru No.18 was found capsized in waters off Japan\'s Izuoshima island, around 100 kilometres (60 miles) south of Tokyo by patrol boats and a plane that had been dispatched to the area, a spokesman said. \"We are still searching for six crew members, all Japanese, who were on a vessel carrying steel from Nagoya to Chiba,\" he said, adding that the Sierra Leone-registered ship was not in danger.