US envoy Steve Witkoff said he was optimistic about a deal ahead of talks with Russia's Vladimir Putin.

US envoy Witkoff to meet Putin on Thursday, the Kremlin confirms, as signing of $800bn Ukraine deal is put on hold.

DAVOS, Switzerland: United States envoy Steve Witkoff will travel to Moscow later on Thursday to discuss an end to the war in Ukraine, he told an audience at the World…