Zelensky Demands Cease-Fire in Response to Putin’s Call for Direct Talks

President Volodymyr Zelensky of Ukraine responded cautiously on Sunday morning to Russia’s offer of direct talks, calling it a “positive sign” but insisting that President Vladimir V. Putin must agree to an immediate cease-fire first.

Mr. Zelensky’s comments came hours after Mr. Putin rejected a cease-fire and instead proposed that direct talks between representatives of the two countries take place on May 15 in Istanbul. The Ukrainian leader did not directly address those details, but said in a social media post that he still “expected Russia to confirm a cease-fire” that would start on Monday.

The back and forth between Mr. Zelensky and Mr. Putin came after the leaders of France, Britain, Germany and Poland visited Kyiv and announced a Monday deadline for Russia to accept a 30-day cease-fire or face additional sanctions. The European leaders, who spoke by phone from Kyiv on Saturday with President Trump, said that the United States would also impose sanctions on Russia if Mr. Putin did not agreed to a truce.

Since initiating efforts to end the war in Ukraine three months ago, the Trump administration has aligned with Russia on a vote in the United Nations on the war and resumed broader diplomatic ties with Moscow. It has left in place existing economic sanctions but has not ramped up pressure with additional restrictions, even as Mr. Putin has shown little sign of pulling back in the war. By contrast, Ukraine agreed in March to an American proposal for an unconditional cease-fire.

At a late-night news conference on Saturday, Mr. Putin responded to the European deadline by asking for direct talks with Ukraine that would begin in Istanbul in the coming days, but he did not accept the cease-fire proposal. Earlier, the Kremlin spokesman said Russia would do so only if Western governments stopped supplying arms to Ukraine.