Ukraine claimed it carried out an underwater drone strike on Dec. 15, the first such attack in maritime warfare, that critically damaged a Russian Kilo-class attack submarine at the Russian port of Novorossiysk,

Ukrainian drone attack in southwestern Russia killed two people as parts of Ukraine went without power after Russian assaults on energy sites hours before peace talks were to restart in Germany.

Ukraine's HUR military intelligence service has carried out what officials describe as the largest single-day strike on occupied Crimea since 2023, using its Prymary drone unit, known by the call sign "Ghosts.

Russia has launched a major missile and drone attack on Ukraine, targeting energy infrastructure and triggering air raid alerts.

The Russian submarine was allegedly carrying Kalibr cruise missiles, which Russia has used in devastating strikes on critical infrastructure and military targets across Ukraine. The SBU said the submarine was “put out of action” as a result of the blast. The FT could not independently verify the claim.