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Ukrainian drone attacks on Russian regions and Crimea killed four people, with unverified reports indicating Ukraine also targeted a Rosneft-operated oil refinery in the Saratov region. A major overnight Ukrainian drone strike hit the Black Sea port city of Novorossiysk, killing several people. Ukraine's Navy said the strike also involved a Neptune cruise missile that hit the Admiral Essen frigate docked in Novorossiysk, damaging the Kalibr missile-carrying warship's superstructure, marking a notable blow against Russia's Black Sea Fleet.