Ukraine says it carried out first-ever underwater drone strike on Russian submarine in Novorossiysk

Ukraine said Monday it carried retired an underwater drone onslaught that critically damaged a Russian Kilo-class submarine docked successful the larboard of Novorossiysk, marking the archetypal known onslaught of its kind. 

The Security Service of Ukraine (SBU) said its "Sub Sea Baby" underwater drones struck a Russian submarine equipped with 4 launchers for Kalibr cruise missiles utilized to people Kyiv and different parts of the country.

The cognition was carried retired by the Ukrainian Navy and the SBU's 13th Main Directorate of Military Counterintelligence.

Video released by the SBU showed respective ships docked astatine the Novorossiysk naval basal successful Russia’s Krasnodar portion earlier a ample detonation occurred.

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The Security Service of Ukraine said its "Sub Sea Baby" underwater drones struck a Russian submarine connected Monday, Dec. 15, 2025. (Ukraine Security Service via APTN)

The basal has go a cardinal refuge for Russia’s fleet arsenic Ukraine intensifies strikes connected Sevastopol and different occupied Crimean ports.

The SBU said the submarine had been forced to stay successful Novorossiysk due to the fact that of different Ukrainian operations, including the usage of Sea Baby aboveground drones that drove Russia’s Black Sea Fleet retired of Sevastopol Bay.

A spokesperson for Russia’s Black Sea Fleet denied the onslaught caused immoderate damage, penning connected Telegram that nary submarines oregon crews were harmed.

Russian President Vladimir Putin visits the destroyer Vice-Admiral Kulakov astatine the Black Sea Fleet’s naval basal connected Sept. 23, 2014, successful Novorossiysk, Russia. (Sasha Mordovets/Getty)

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"[Ukraine] erstwhile again proved that minnows tin swallow sharks utilizing innovation," drone adept Brett Velicovich told Fox News Digital. "Underwater drones are the adjacent improvement successful drone warfare."

The submarine onslaught comes arsenic Russia continues to motorboat large-scale drone and rocket attacks connected Ukraine and arsenic the United States works to extremity Russian President Vladimir Putin’s war.

A parent cries astatine the coffin of her son, Oleh Borovyk, a Ukrainian serviceman killed successful warring with Russian forces adjacent Pokrovsk, during his ceremonial ceremonial successful Boiarka, Ukraine, connected Dec. 3, 2025. (Evgeniy Maloletka/AP)

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Ukrainian President Volodymyr Zelenskyy and his negotiating squad met successful Berlin connected Sunday with U.S. Special Envoy Steve Witkoff and Jared Kushner, President Donald Trump’s son-in-law, to sermon information guarantees for Ukraine.

Zelenskyy besides held talks with European leaders earlier successful the week connected a broader governmental model to extremity the war, unafraid semipermanent protections for Ukraine and enactment the country’s postwar recovery.