ZCZC FA08 251834 UTC MARPETERSBURG NAV WARN 047/26EASTERN GULF OF FINLANDSHIPS EXERCISES 312100 UTC MAR THRU 302100 UTC APRIN AREA TEMPORARILY DANGEROUS TO SHIPPING KR-11460-06.30N 027-02.60E 60-07.50N 027-07.50E60-03.60N 027-11.50E 60-02.20N 027-06.50ECANCEL THIS MESSAGE 302200 UTC APR NNNN