ZCZC JA37 080906 UTC SEP LATVIAN NAV WARN 024/26 LIEPAJA NORTHWARDS. FIRING EXERCISE IN PROGRESS SEP 10 FROM 1100 - 1700 UTC SEP 11 FROM 0700 - 1700 UTC IN M2 AREA WITH A RADIUS OF 9 NM FROM CENTER PSN 56-43.00N 020-53.00E AREA CLOSED FOR NAVIGATION DURING EXERCISE WIDE BERTH REQUESTED INFORMATION ON RESTRICTIONS ON VHF CH 16 CANCEL THIS MSG ON 111700 UTC SEP NNNN