ZCZC FA58 291326 UTC SEP ESTONIAN NAV WARN 164/26 GULF OF FINLAND. 020700 - 021200 UTC OCT W OF NAISSAAR ISLAND FIRING PRACTICE AREA 2A CENTRED 59-35N 024-19E FIRING EXERCISES IN PROGRESS. OTHER VESSELS MUST AVOID ENTRY INTO THE AREA. STANDING BY VHF CH 13 AND 61. CANCEL 021200 UTC OCT. NNNN