Sub Sea Baby underwater drones struck the Varshavyanka submarine in the port of Novorossiysk, launching Kalibr missiles at targets on the Ukraine. This was stated by the SBU in its telegram channel.
The SBU claims that there were four Kalibr cruise missile launchers on board the Class 636.3 submarine.
"As a result of the explosion, the submarine received critical damage and was actually disabled," the SBU said in a statement.
It is noted that this was a joint operation of the military counterintelligence department and the Ukrainian Navy.

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