ZCZC LA25 161300 UTC APR *WY *OA*TAL WARNING ARKH*NGELSK 26 DVINSKIY ZALIV 1.FIRING ARTILLERY 21 A*D 22 APR 0700 TO 1000 IN AREA PROHIBITED TO NAVIGATION 64-34.55N 039-46.40E 64-32.75N 039-34.60E 64-38.50N 039-37.80E 64-39.95N 039-*WMWPE 2.CANCEL THIS MESSAGE 221100 APR= NNNN