ZCZC FA14 252304 UTC APR PETERSBURG NAV WARN 075/26 EASTERN GULF OF FINLAND. SHIPS EXERCISES 302100 UTC APR - 312100 UTC MAY IN AREA TEMPORARILY DANGEROUS TO SHIPPING: 60-00.50N 027-16.50E 60-05.40N 027-34.00E 59-53.00N 027-48.00E 59-48.00N 027-31.00E CANCEL THIS MSG 312200 UTC MAY. NNNN