Der ukrainische Sicherheitsdienst hat das U-Boot Varshavianka (Kilo) mit einer Sub Sea Baby-Drohne angegriffen, Novorossiysk, Russland, Dezember 2025.

The SBU struck a Russian submarine in Novorossiysk

The Security Service of Ukraine carried out another unique special operation in the port of Novorossiysk. For the first time in history, Sub Sea Baby underwater drones blew up a Russian 636.3 Varshavianka-class submarine (classified as Kilo by NATO). As a result of the explosion, the submarine suffered critical damage and was effectively put out of action.

The submarine carried four Kalibr cruise missile launchers, which the enemy uses to strike Ukrainian territory.

This was a joint operation by the 13th Main Directorate of Military Counterintelligence of the Security Service of Ukraine and the Ukrainian Navy.

The cost of a Varshavianka-class submarine is about $400 million. Given the international sanctions in place, the construction of a similar submarine could now cost up to $500 million. This class of submarines is also known as the “Black Hole” because of the hull’s ability to absorb sound and remain undetectable by sonar.

It should be noted that the blown-up boat was forced to remain in the port of Novorossiysk due to successful special operations by Sea Baby surface drones, which drove Russian ships and submarines out of Sevastopol Bay in the temporarily occupied Crimea.

Lmao they can’t even defend the submarines ffs

Im actually more surprised how they get this clear footage. Did they hack into a Russian security camera system, or did they place one themselves with a Starlink connection?

None of those ships are safe with subsea ROVs slowly steaming into the basin undetected. Next stelt is an oilboom type of netting at port entry?