The 30 ton fishing vessel Kasuga Maru capsized and sank near Amami Ōshima Island, Japan.  The crew sent out a distress call before the trawler overturned in heavy seas.  The Japanese Coast Guard patrol vessel spotted the Kasuga Maru and rescued four of the six crew.   The four crew were found on two rubber boats.   Two of four crew rescued had suffered injuries to their legs caused by shark attacks.  The two remaining crewmen were reported as missing.  No further details reported.