Another 40 people were wounded in the overnight strikes on Ukraine that targeted energy and transport infrastructure, forcing emergency power cuts in a number of regions.

Ukraine said it had successfully struck targets in Russia using U.S.-supplied ATACMS missiles, ending a months-long absence of the powerful weapon from the battlefield. In a statement shared on Facebook, the General Staff of the Armed Forces of Ukraine called it "an iconic event that emphasizes Ukraine's unwavering devotion to its sovereignty."

The Trump administration has been quietly hammering out a new peace plan with Russia to end its war with Ukraine, a person familiar with the talks told CNN.

Ukrainian officials say a missile and drone attack killed dozens, right as the U.S. Army secretary arrived to push for peace talks.

Two Ukrainian citizens working for Russia are suspected of blowing up a railway line in Poland over the weekend, Prime Minister Donald Tusk said Tuesday.

Ukraine has asked the Vatican to formalize its role facilitating negotiations for the return of Ukrainian children and civilians taken by Russia during the war.

President Vladimir Putin on Wednesday called for a national task force to coordinate Russia's work on homegrown generative artificial intelligence models, which he said were vital to preserving Russian sovereignty.

An explosion that damaged a Polish railway track on a route to Ukraine was an “unprecedented act of sabotage,” Prime Minister Donald Tusk said on Monday.