ZCZC FA97 261211 UTC OCT PETERSBURG NAV WARN 218/26 EASTERN GULF OF FINLAND SHIPS EXERCISES 312100 UTC OCT THRU 302100 UTC NOV IN AREA TEMPORARILY DANGEROUS TO SHIPPING KR-107 60-10.3N 028-45.7E 60-10.3N 028-54.6E 60-04.0N 028-54.6E 60-04.0N 028-34.0E 60-07.0N 028-34.0E CANCEL THIS MESSAGE 302200 UTC NOV NNNN