ukrinform.net
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15:59 Dec 15, 2025
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.