Ukrainian naval drones hit Russian submarine carrying Kalibr missiles in Novorossiysk
In the port of Novorossiysk, Russia, Sub Sea Baby underwater drones of the Security Service of Ukraine (SBU) for the first time in history struck a Russian Project 636.3 Varshavyanka class submarine (NATO designation: Kilo). As a result of the explosion, the submarine sustained critical damage and is effectively out of service.