ZCZC RA51 172250 UTC JUL 26 LA MADDALENA RADIO COASTAL WARNING NR. 305/26 JUL 16 SOUTHERN TYRRHENIAN SEA, EASTERN SECTOR A DRIFTING BARREL AT POSITION 38 34.909N - 014 40.452E, DANGEROUS TO NAVIGATION. VESSELS IN TRANSIT BEWARE NNNN