ZCZC _A29 251818 UTC MAR KALINGRAD NAV WARN 053/26 SOUTHEASTERN BALTIC SHIPS EXERCIS__ 312__5: .-4 5_47 302100 UTC APR IN A__A TEMPORARILY DANGEROUS TO SHIPPING BR-161 , ___88 (+____. __+/__0__0.____+____ -00.00E 55-02.00N 020-00.00E 55-02.00N 019-39.60E CANCEL THIS MESSAGE 302200 UTC APR NNNN