Four robbers boarded anchored chemical tanker in vung tau anchorage (10-25N 107-05E)

Original warning text

SOUTH CHINA SEA.
VIETNAM.
DNC 11.
1. FOUR ROBBERS BOARDED ANCHORED CHEMICAL TANKER
   IN VUNG TAU ANCHORAGE (10-25N 107-05E).
   VESSELS ARE ADVISED TO KEEP CLEAR OF THIS
   POSITION AND TO EXERCISE EXTREME CAUTION.
   REPORTS TO IMB PIRACY REPORTING CENTER,
   PHONE: 603 2031 0014, 603 2078 5763,
   FAX: 603 2078 5769,
   E-MAIL: [email protected], [email protected].
2. CANCEL THIS MSG 280016Z APR 20.