ZCZC FA99 251829 UTC MAR PETERSBURG NAV WARN 046/26 EASTERN GULF OF FINLAND. SHIPS EXERCISES 312100 UTC MAR THRU 302100 UTC APR 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 MESSAGE 302200 UTC APR. NNNN