Screengrab via UNITED24/Ukrainian government
- Ukrainian sea drones are laying mines to damage Russian ships in the Black Sea, the WSJ reported.
- Four ships, including missile corvette Samum and patrol ship Pavel Derzhavin, have been hit.
- Laying mines by naval drone is part of Ukraine's unconventional warfare program.
Ukrainian uncrewed surface vessels are laying undersea mines that have already damaged several Russian warships in the Black Sea, The Wall Street Journal reported.
Brig Gen Ivan Lukashevych, of Ukraine's SBU security service, described to the Journal the development of a specialized Sea Baby drone capable of laying Western-supplied bottom mines — small, 400-pound mines that sit under the sea bed.