Zelensky said Russia targeted Ukraine overnight, while a Russian official said drones targeted a New Year party in a Russian-occupied region.

Russia used the Oreshnik hypersonic missile to attack Ukraine, weeks after an alleged assassination attempt targeting Vladimir Putin, marking a new escalation in the Russia-Ukraine war.

European leaders are due to hold talks Tuesday on U.S.-led peace efforts to end the war between Russia and Ukraine

Trump "very angry" over alleged Ukrainian drone strike on Putin's residence. Follow Newsweek's live blog for the latest updates.

In October, China deepened its support for Russia’s war effort through intelligence sharing, expanded drone supplies, and closer military cooperation, while strengthening diplomatic and economic

Kiev claims it struck Russia's Novocherkasskaya power plant as a UK official says new British missiles will "keep Ukraine in the fight."

It is only the second time Moscow has deployed the hypersonic ballistic missile, which was first used to hit Dnipro in November.

Russia warns Western forces deployed to Ukraine under postwar security deal would be "legitimate combat targets" as diplomatic tensions escalate.