XSG - Shanghai QA71 CLASS:IMPORTANT 10:13:17 UTC 2012-2-22 NAVIGATIONAL WARNING NR:115 TO ALL STNS SH0007 EAST CHINA SEA REPORTED A KOREA TUGBOAT DONGAH5 (CALL SING DSQU9 MMSI 441714000 5 CREWS) AND A BARGE OCEAN9002 (8000 TONNAGE 1 CREW) LOST CONTACT AT 211800 FEB ON IT'S WAY FROM BUSAN KOREA TO PHILIPPINES VESSELS IN VICINITY PLEASE GO TO SEARCH SHANGHAI MSA CHINA