Overview
- Ukraine’s Security Service says Sub Sea Baby drones struck a Project 636.3 Kilo-class submarine in Novorossiysk on Dec. 15, causing critical damage and taking it out of service.
- Video released by Kyiv purports to show the blast at the port; Russia now denies any submarine was hit and calls the sabotage attempt a failure.
- Ukrainian officials say the targeted boat carried four Kalibr cruise‑missile launchers routinely used against Ukraine.
- Reports describe Sub Sea Baby as the new submersible variant of Ukraine’s Sea Baby program, as analysts put the class’s value near $340–400 million.
- Analyst commentary indicates Ukrainian operators likely hacked the port’s security systems to support the strike, and independent confirmation of the damage remains pending.