The Ukrainian military sank the Russian missile boat "Ivanovets" at night. The corvette was 56 meters long. It was sunk with the help of unmanned attack boats (marine drones) 9 km from the entrance to Lake Donuzlav near the village of Okunivka in Crimea. The first strike by the drone on the corvette was at 03:42, the second at 03:44, the third at 03:47. Around 04:00, the crew of the corvette stopped fighting the ship's survivability and began evacuation. At 04:46 the corvette tipped to the stern and sank. According to official data, the crew was evacuated.