ZCZC PA37 221739 UTC APR 26 MSI 133/26 NORTHSEA VLIELAND GRONDEN OBSTACLES ON SEABED IN FOLLOWING POSITIONS: 53-19.2N 004-02.3E 53-18.5N 004-02.1E DAN_EROUS TO SHIPPING AND FISHERY CANCEL MSI 38/26 MSI 2/26 NNNN