US President Donald Trump's special envoy Steve Witkoff will travel to Abu Dhabi for talks with Russia and Ukraine on Wednesday and Thursday, a White House official said on Monday.
Witkoff, on January 22, said "a lot of progress" had been made in Ukraine peace talks and that negotiations were down to one last issue.
The United States has held talks with Russia, and separately with Kyiv and European leaders, on various different drafts of a plan for ending the war in Ukraine, but no deal has yet been reached despite Trump's repeated promises to clinch one.
Witkoff: 'We are going to get this solved'
"If both sides want to solve this, we're going to get it solved," Witkoff told an audience at the World Economic Forum in Davos.
"I think we've made a lot of progress," he added.
US President Donald Trump, a day earlier, told the Davos forum that the leaders of Russia and Ukraine would be "stupid" if they failed to come together and get a deal done.
Witkoff said he was headed to Moscow later in the day. He spoke in an impromptu appearance a breakfast meeting on the future of Ukraine, with panelists including NATO Secretary Mark Rutte and Finnish President Alexander Stubb.