ZCZC AA54 111230 UTC JUL 26 *COASTAL WARNING NOVOROISIYSK 298 BLACK SEA 1. THREAT OF TERRORIST ACTS COMMITTI*G BY UKRAINE USING UNMANNED SURFACE VEHICLES AND UNMANNED AERIAL VEHICLES AGAINST CIVILIAN VESSELS EXISTS IN NORTH-WESTERN AND CENTRAL PART OF BLACK SEA IN CASE OF ATTACK VESSELS SHOULD INFORM NEAREST SHIPS AND VTS AND MRCC NNNN