Russia's Black Sea Fleet confirmed on December 15, local time, that Ukraine tried to use unmanned submarines to attack Russia's naval base at Novorossiysk Port in the Black Sea, but “failed to achieve any goals, and no ships or submarines were damaged as a result.” According to reports, the head of the press department of the Russian Black Sea Fleet said, “The enemy's attempt to carry out sabotage through unmanned submarines failed. Not a single ship or submarine of the Black Sea Fleet anchored at the Novorossiysk port base was damaged. There were no injuries to the crew as a result of this vandalism; they are carrying out their duties normally.”

Russia's Black Sea Fleet confirmed on December 15, local time, that Ukraine tried to use unmanned submarines to attack Russia's naval base at Novorossiysk Port in the Black Sea, but “failed to achieve any goals, and no ships or submarines were damaged as a result.” According to reports, the head of the press department of the Russian Black Sea Fleet said, “The enemy's attempt to carry out sabotage through unmanned submarines failed. Not a single ship or submarine of the Black Sea Fleet anchored at the Novorossiysk port base was damaged. There were no injuries to the crew as a result of this vandalism; they are carrying out their duties normally.”