New Delhi, Dec. 19 -- A Kremlin envoy will travel to Florida to discuss a U.S.-proposed plan to end the war in Ukraine, a U.S. official said Thursday, part of the back-and-forth diplomacy as the Trump administration pushes for a potential deal.

Kirill Dmitriev, who heads Russia's sovereign wealth fund, is set to meet with U.S. President Donald Trump's envoy, Steve Witkoff, and Trump's son-in-law Jared Kushner in Miami on Saturday, according to an American official who spoke on condition of anonymity to preview a meeting that hasn't yet been publicly announced.

The official said Witkoff and Kushner will sit down with Dmitriev, after meetings with Ukrainian and European officials in Berlin earlier this week, in which they discussed U.S. s...