ZCZC JA53 261247 UTC MAY KALINGRAD NAV WARN 112/26 SOUTHEASTERN BALTIC 1. SHIPS EXERCISES 312100 UTC MAY THRU 302100 UTC JUN IN AREA TEMPORARILY DANGEROUS TO SHIPPING BR-161 55-09.50N 019-45.30E 55-09.50N 020-00.00E 55-02.00N 020-00.00E 55-02.00N 019-39.60E 2. CANCEL THIS MESSAGE 302200 UTC JUN NNNN