Lavrov's remarks came a day after U.S. President Donald Trump and Ukrainian President Volodymyr Zelenskiy met and expressed hope that their discussions could pave the way for three-way talks involving Russian President Vladimir Putin.

Ukrainian and Russian presidents Volodymyr Zelensky and Vladimir Putin looked set for a peace summit after fast-moving talks Monday between US President Donald Trump and European leaders that focused on the key issue of long-term security guarantees for Kyiv.

Donald Trump and Volodymyr Zelensky were seen laughing together in the White House as the US president promised new talks on peace in Ukraine - though some nations are still demanding a ceasefire

NATO Secretary-General Mark Rutte said Russian President Vladimir Putin has agreed to meet with Ukrainian President Volodymyr Zelensky. Rutte shared details of a phone call between Putin and President Trump on Monday,