Ukrainian troops hit the command post of the 810th Guards Naval Infantry Brigade in the town of Lgov in Russia's Kursk Oblast overnight on Dec. 25, Ukraine's Center for Strategic Communications reported.

On the night of December 25, the Ukrainian Armed Forces hit the command post of Russia’s 810th Separate Marines Brigade located in an abandoned civilian building in Lgov, Kursk region. — Ukrinform.

Russian air defenses intercepted multiple drones, but reports indicated that the strategic Millerovo air base sustained damage.

Ukrainian President Volodymyr Zelenskiy said on Monday that more than 3,000 North Korean soldiers have been killed and wounded in Russia's Kursk region and warned that Pyongyang could send more personnel and equipment for Moscow's army.

As the war in Ukraine drags on toward a fourth year, North Korea is preparing to send Moscow more troops beyond the 12,000 already there, as well as additional weapons, including suicide drones, according to the latest assessment from South Korean intelligence.