3 Ukrainian Unmanned surface Vessels attempted to strike Crimea.

According to information published by Военный Осведомитель on March 22, 2023, three Ukrainian Unmanned surface vessels (USV) attempted to strike the coastal bays in Sevastopol. One USV was stopped by the visual observation post on a ship in the north.
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Ukrainian Unmanned Surface Vessel. (Picture source: Ukrainian government)

The other two were destroyed, even before reaching Sevastopol Bay, by small arms fire. At present, all unmanned vehicles have been eliminated, and the bays have been closed to ship traffic.

The Armed Forces of Ukraine are preparing a massive combined attack on Crimea in the next days using unmanned aerial and surface vehicles, as well as missile weapons.

The attack by unmanned maritime vehicles seems more like a "feel out" of the condition of the Black Sea Fleet's defenses and a search for the least protected areas near Sevastopol for the next sabotage. The video allegedly captures a burning unmanned surface vessel stuck on the booms at the entrance to the harbor.

About the Ukrainian drone

The USV has a length of 5.5 meters and can weigh up to 1000 kg when fully loaded. It has an operational radius of up to 400 km and can travel up to 800 km in range. The vehicle has an autonomy of up to 60 hours and can carry a combat load of up to 200 kg. Its maximum speed is 80 km/h.

The vehicle utilizes automatic GNSS, inertial, and visual navigation methods, and can transmit up to three HD video streams. It also features 256-bit encryption for crypto protection.