The EU is preparing new sanctions on Russia despite a potential meeting between Vladimir Putin and Volodymyr Zelenskyy on Thursday, three sources told CNBC.

Ukrainian President Volodymyr Zelensky said he is prepared to meet Vladimir Putin this week, shortly after US President Donald Trump urged him to “immediately” accept the Russian leader’s offer to hold peace talks in Turkey.

Ukrainian President Volodymyr Zelenskyy comments mark the latest move in a weekend-long exchange of proposals from both sides on the next steps in the U.S.-led peace effort.

Ukraine must be prepared for the possibility that Russian President Vladimir Putin will not attend the meeting in Istanbul. However, it is important for Kyiv not to make concessions and to continue insisting on a presidential-level meeting in order to ...

By challenging Putin to face-to-face talks in Istanbul, Ukraine’s president has reshaped the diplomatic game and forced Moscow into a high-stakes dilemma.

This is the moment Vladimir Putin called Western leaders ‘morons’ after he was threatened with new sanctions. Key European leaders warned that Russia will face the sanctions if Putin fails to agree to a 30-day ceasefire and attend peace talks in Turkey on Thursday.

Ukraine's air force reported an overnight Russian attack involving more than 100 drones, as Russia's President Vladimir Putin rejected Ukrainian President Volodymyr Zelensky 's proposal of an immediate 30-day ceasefire.

NBC News' Keir Simmons reports on the world leaders present at Russia's parade to mark the end of World War II. Brazilian President Lula also weighs in on the Russia-Ukraine war.