ZCZC FA55 230905 UTC JUL PETERSBURG NAV WARN 152/26 EASTERN GULF OF FINLAND. SHIPS EXERCISES 312100 UTC JUL THRU 312100 UTC AUG 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 312200 UTC AUG. NNNN