U.S. special envoy Steve Witkoff meets with Russian President Vladimir Putin in Moscow to bring a peace plan to end the nearly four-year war with Ukraine.

Russian President Vladimir Putin has claimed without evidence that Russian forces have taken control of Ukrainian cities Pokrovsk and Vovchansk.

President Vladimir Putin hailed what his commanders said was Russia's full capture of Pokrovsk in eastern Ukraine as an important victory, but the Ukrainian military said its forces still held the northern part of the city.

Russia launched its largest barrage of drones and missiles in a month across Ukraine, killing at least three people, Ukrainian President Volodymyr Zelensky said Saturday, as a Kyiv delegation heads to the United States for fresh peace talks.

Kyiv's attacks on infrastructure propping up oil exports are "detrimental" to Kazakh relations with Kyiv, Astana's government said on Sunday, after Ukrainian seaborne drones attacked two Russian-linked oil tankers and Kazakh authorities said unmanned boats had damaged an oil terminal in the Black Sea.

Ahead of the meeting, Russia claims to have captured the key eastern city of Pokrovsk, a front-line development Ukraine denies. Ukraine President Volodymyr Zelenskyy is meeting with political leaders in Ireland on an official visit.

Oil prices declined 1% on Tuesday as markets weighed faltering Russia-Ukraine peace hopes against fears of oversupply. Brent crude futures settled 72 cents lower, or 1.14%, at $62.45 a barrel, while U.

Michael Froman, Council on Foreign Relations president, joins 'Squawk Box' to discuss the meeting between a U.S. delegation led by special envoy Steve Witkoff and Russian President Vladimir Putin, state of the Russia-Ukraine war,