President Trump’s envoys Steve Witkoff and Jared Kushner arrived in Moscow on Saturday, Russian state news agencies reported, ahead of a planned trip to Kyiv, Ukraine, as they hope to reignite diplomatic efforts to end the war there.

Mr. Witkoff, the president’s special envoy, and Mr. Kushner, Mr. Trump’s son-in-law, are making their first trip to Russia since January. A month after that visit, U.S.-backed peace negotiations went into a deep freeze when the United States and Israel attacked Iran.

Since Mr. Trump took office in January 2025, Mr. Witkoff has met regularly with President Vladimir V. Putin of Russia. At the end of that year, Mr. Kushner began joining Mr. Witkoff for meetings with the Russian leader.

But the planned trip to Kyiv would be the first by either American envoy.

President Volodymyr Zelensky of Ukraine said on Friday that Ukrainian forces would not conduct airstrikes on Russia while the envoys were there, and he called on Mr. Putin to reciprocate by temporarily halting strikes on Ukraine.

The U.S. envoys’ visit to the Russian capital is taking place days after the C.I.A. director, John Ratcliffe, traveled there. Mr. Ratcliffe delivered a bleak assessment of Moscow’s prospects in the war and urged Russian officials to end it.

The talks follow a shift in the war’s dynamics. Since April, Ukraine has launched a campaign targeting Russian fuel and logistics infrastructure, bringing the war closer to ordinary Russians.

Russia, for its part, has taken advantage of Ukraine’s depleted arsenal of air defense interceptors, allowing it to strike more targets across the country and making daily life in Kyiv increasingly dangerous. On Friday, a drone hit the headquarters of Ukraine’s domestic intelligence service in the heart of the Ukrainian capital.

Russia and Ukraine also face mounting financial strain to support a war that is growing costlier, as both sides struggle to keep pace with advanced technologies, like jet-powered drones and ballistic missiles.

But the war appears far away from any resolution.

Speaking on Friday, Dmitri S. Peskov, Mr. Putin’s spokesman, praised “the good will of the Americans” who, he said, “are ready to continue their mediation efforts.” But Mr. Peskov said Russia would continue to insist that Ukraine withdraw its troops from the Donetsk and Luhansk regions, in the country’s east, before any cease-fire could occur — a demand that Ukraine has rejected.

Mr. Peskov’s comments followed statements on Thursday by Mr. Putin, who said that regardless of American mediation efforts, “Russia and Ukraine must first reach an agreement between themselves.”