ZCZC FA98 251827 UTC MAR PETERSBURG NAV WARN 045/26 EASTERN GULF OF FINLAND. SHIPS EXERCISES 312100 UTC MAR THRU 302100 UTC APR IN AREA TEMPORARILY DANGEROUS TO SHIPPING KR-105: 60-08.50N 029-00.00E 60-08.50N 029-15.00E 60-03.50N 029-15.00E 60-03.50N 029-00.00E CANCEL THIS MESSAGE 302200 UTC APR. NNNN