ZCZC JA24 061320 UTC JUL LATVIAN NAV WARN 020/26 CENTRAL BALTIC. LIEPAJA NORTHWARDS. FIRING EXERCISE IN PROGRESS ON JULY 08-09 FROM 0700-1700 UTC IN M2 AREA WITH A RADIUS OF 9 NM FROM CENTER PSN N 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 091700 UTC JUL NNNN