On September 3, the Ukrainian Navy reported that its unmanned boat hit a Russian multi-purpose support ship at the Russian port of Sochi. A violent explosion occurred around the ship, and there was a large amount of smoke at the scene. According to the Ukrainian Navy, the ship is part of the Russian maritime and energy infrastructure system. There has been no response from the Russian side to this.

On September 3, the Ukrainian Navy reported that its unmanned boat hit a Russian multi-purpose support ship at the Russian port of Sochi. A violent explosion occurred around the ship, and there was a large amount of smoke at the scene. According to the Ukrainian Navy, the ship is part of the Russian maritime and energy infrastructure system. There has been no response from the Russian side to this.