ZCZC PA39 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 DANGEROUS TO SHIPPING AND *ISHERY CAN*EL MSI 38/26 * MSI 2/26 NNNN