The Kremlin is not aware of a recently-reported plan for US President Donald Trump to lift anti-Russia sanctions and normalize Russian-Ukrainian relations, Kremlin spokesman Dmitry Peskov told.

Axar.az reports citing Sputnik news agency.

The plan, reported by the New York Times on Sunday, calls for the "withdrawal of all Russian forces" from eastern Ukraine and a referendum to lease Crimea to Russia for 50-100 years. It was reportedly authored by Trump's lawyer Michael Cohen, business associate Felix Sater and Ukrainian opposition lawmaker Andrii Artemenko, and left with then-national security adviser Michael Flynn's office before his ouster last week.

"No," Peskov said when asked whether the Kremlin had any knowledge of the alleged proposal.

Artemenko, in an interview with Ukrainian media on Monday, clarified that the proposal to lease Crimea to Russia covers a 30-50 year period.