A source told Reuters on Sunday that Trump, who has criticised the scale of U.S. military and financial support for Kyiv and said he will end the war quickly, had spoken to Putin in recent days. "This is completely untrue. This is pure fiction, it's just false information," he told reporters. "There was no conversation."

The Kremlin denied reports by Reuters and others that Russian President Vladimir Putin spoke by phone with U.S. president-elect Donald Trump in recent days.