ZCZC FA16 080400 UTC NOV ESTONIAN NAV WARN 183/26 GULF OF FINLAND. 090700 - 122159 UTC NOV MINEHUNTING OPERATION IN AREA BOUNDED BY: 59-26.9N 023-42.3E 59-30.2N 024-05.3E 59-24.8N 024-08.2E 59-21.5N 023-45.3E OR ALTERNATE AREA: 59-23.3N 023-59.1E 59-19.8N 024-04.6E 59-18.9N 024-02.6E 59-22.4N 023-56.9E OR: 59-21.5N 023-49.1E 59-20.1N 023-51.8E 59-18.1N 023-48.1E 59-19.4N 023-45.3E KEEP SAFE DISTANCE FROM NAVAL SHIPS 05 NM. CANCEL 122159 UTC NOV. NNNN