tokyo japan coast guard find body male part wooden boat suspect north korea coast one japan outlying islands saturday official say coast guard make discovery around 6:30 a.m. saturday 2130 gmt friday sado island coast japan northwestern prefecture niigata coast guard official say decline give name guard also find pack cigarettes write korean personal belong korean write near body official say cause death still unknown official say discovery saturday mark second time month part wooden boat suspect north korea wash shore sado island official say find body add increase unease japan south korea north korea nuclear arm program u.s. president donald trump redesignated north korea state sponsor terrorism allow u.s. government levy additional sanction friday police find eight north korean men near boat seaside marina northern japan men appear fishermen whose boat trouble rather defectors police say last week coast guard rescue three north korean men capsize boat sea japan say fishermen late send home aboard north korean vessel north korean soldier dramatically defect south korea last week shoot wound country military dash across heavily guard demilitarize zone two countries japan coast guard find body dead male suspect north korea