ZCZC FA50 251329 UTC SEP ESTONIAN NAV WARN 161/26 NORTHERN BALTIC SEA. 280600 - 281200 UTC SEP BETWEEN SAAREMAA AND HIIUMAA ISLAND FIRING EXERCISES IN PROGRESS IN AREA: 58-52.50N 021-44.17E 58-52.70N 022-23.67E 58-38.60N 022-29.43E 58-34.73N 022-16.45E 58-28.67N 022-03.00E 58-30.75N 022-01.10E 58-32.93N 021-31.77E SHIPPING IN AREA TEMPORARILY PROHIBITED. CANCEL 281200 UTC SEP. NNNN