US president Donald Trump indicated he could make a reciprocal trip to Russia if Vladimir Putin was able to accept his invitation to the White House, officials in Moscow said.
Russia's foreign minister Sergey Lavrov told Russian state television that Mr Trump mentioned the possibility of travelling to Russia when he called his Russian counterpart Mr Putin on March 20 to congratulate him on his re-election.
Both the White House and the Kremlin previously revealed Mr Trump had invited Mr Putin to the White House during the same call, when the two leaders discussed wanting to meet soon.
Mr Lavrov says the Trump administration has not followed up on Mr Trump's earlier offer.
The Russian foreign minister said Russia has urged the US to discuss specifics about such a meeting.
He said Russian officials "don't want to be too obtrusive, but don't want to be impolite".