Russia’s top diplomat said in an interview released on Friday that “there is no meeting planned” between President Vladimir V. Putin of Russia and President Volodymyr Zelensky of Ukraine. It was the Kremlin’s most direct declaration yet that a summit the White House suggested was imminent was nowhere close to materializing.

President Trump said in a social media post Monday that he had spoken to Russian President Vladimir Putin and set in motion arrangements for a summit at a location to be decided.

Ukrainian President Volodymyr Zelenskiy said on Friday Russia was doing everything it could to stop a meeting between him and Vladimir Putin from taking place, while Russia's foreign minister said the agenda for such a summit was not ready.