US President Donald Trump's overseas envoy will travel to Germany this weekend to meet Ukrainian President Volodymyr Zelensky and European leaders for the latest round of high-level talks on ending the war.
Steve Witkoff, who has been leading White House attempts to mediate between Ukraine and Russia, will discuss the latest version of the proposed peace agreement in Berlin.
The Trump administration is pushing for a deal to be in place by Christmas and has held several rounds of talks with Ukrainian and Russian representatives in recent weeks, though there has been little sign a breakthrough is imminent.
It has not yet been confirmed which European leaders will attend the Berlin talks.
The Wall Street Journal, which first reported details of the meeting, said UK Prime Minister Sir Keir Starmer, French President Emmanuel Macron and German Chancellor Friedrich Merz would all take part.
Confirmation of the Witkoff-Zelensky meeting comes days after Ukraine gave the US its revised version of a 20-point peace plan, the latest iteration of a proposal which first emerged in late November and has triggered a flurry of diplomatic activity.
The fate of territory in eastern Ukraine remains one of the most intractable topics in the negotiations, with Kyiv refusing to cede land which has been illegally occupied, and Moscow repeating its intention to take the Donbas region in full by force unless Ukraine withdraws.
Zelensky has reacted sceptically to the White House's latest proposal on resolving the territorial question, which is for Ukraine's army to pull out of the region and for it to be turned into a "special economic zone".
The Ukrainian president told reporters that under the US-proposed terms, the Kremlin would undertake not to advance into the areas vacated by Ukraine's forces, with the land between Russian-controlled parts of the Donbas and Ukraine's defensive lines effectively turned into a demilitarised zone.
The proposal, seemingly an attempt to resolve the question of legal ownership by creating a new status for the land, has been publicly questioned by Zelensky, who said: "What will restrain [Russia] from advancing?