The Security Service of Ukraine reported that it had struck an Improved Kilo-class submarine at the Russian naval base at Novorossiysk. The attack was carried out with a “Sub Sea Baby” drone.

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Security measures around the Russian Black Sea Fleet base within the port of Novorossiysk, and Ukrainian technology and ...

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Ukraine’s domestic security service, the SBU, said Monday that it struck a Russian submarine in the Black Sea port of Novorossiysk, causing critical damage to the vessel and effectively disabling it.

Preparing the strike on the Russian Varshavyanka-class submarine in the port of Novorossiysk was complex and multi-layered, ...

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NV explains what is known about these submarines. The Varshavyanka project (NATO codification — Improved Kilo) was developed ...