ZCZC FA11 252304 UTC APR PETERSBURG NAV WARN 072/26 EASTERN GULF OF FINLAND SHIPS EXERCISES 302100 UTC APR -312100 UTC MAY IN AREA TEMPORARILY DANGEROUS TO SHIPPING KR-107 60-10.30N 028-45.70E 60-10.30N 028-54.60E 60-04.00N 028-54.60E 60-04.00N 028-34.00E 60-07.00N 028-34.00E CANCEL THIS MSG 312200 UTC MAY NNNN