Skip to main content
Holiday Sale — Get 40% off Vantage for yourself or as a gift
Published loading...Updated

How Ukrainian Undersea Drones Blew up a Russian Submarine - and Why It Matters

Ukraine's underwater drone attack crippled a $400 million Russian Kilo-class submarine, marking the first use of a subsea drone to neutralize a submarine, officials said.

  • On Monday, the Security Service of Ukraine said 'Sub Sea Baby' underwater drones damaged a Project 636.3 submarine at Novorossiysk, posting footage of the explosion.
  • Pressure on the Black Sea Fleet followed moves that saw Ukraine sink the Moskva with Neptune missiles and target vessels with drones, including Kalibr missiles launched from submarines.
  • Damage assessments show the explosion likely destroyed the propeller, hydroplanes and rudder, caused flooding, buckled inner hull structures, and shrapnel damaged another nearby submarine, while the Sub Sea Baby UUV operates like an autonomous torpedo possibly guided externally.
  • Janes assessed that the submarine will be out of service long-term, with limited Black Sea repair options, and Ukraine estimates its cost at about $400m, rising to $500m for replacement.
  • If confirmed, the strike would mark the first successful use of an uncrewed underwater vehicle, expanding maritime threats beneath the surface and challenging port defences at Novorossiysk with future risks to the Kerch Bridge.
Insights by Ground AI

21 Articles

Lean Left

Ukraine launches sea drone attack on Russian submarine

·United States
Read Full Article
Lean Left

Ukraine apparently succeeds in the world's first attack by an underwater drone on an enemy submarine. The attack in the Russian naval port of Novorossiysk could change warfare to sea.

·Germany
Read Full Article
der Standard ATder Standard AT
Reposted by
der Standard DEder Standard DE
Lean Left

The newly developed Sub Sea Baby may have severely damaged a Russian kilo-class submarine

·Vienna, Austria
Read Full Article
Lean Right

With an explosion near a submarine in the port of Novorossiysk, Ukraine has dealt a significant blow to the Russian fleet. The attack is part of a trend showing that Russian ships are no longer safe anywhere in the Black Sea.

·Amsterdam, Netherlands
Read Full Article
Think freely.Subscribe and get full access to Ground NewsSubscriptions start at $9.99/yearSubscribe

Bias Distribution

  • 63% of the sources lean Left
63% Left

Factuality Info Icon

To view factuality data please Upgrade to Premium

Ownership

Info Icon

To view ownership data please Upgrade to Vantage

charter97.org broke the news in on Tuesday, December 16, 2025.
Too Big Arrow Icon
Sources are mostly out of (0)

Similar News Topics

News
Feed Dots Icon
For You
Search Icon
Search
Blindspot LogoBlindspotLocal