Russia has promised to respond to the expulsion of 35 of its diplomats from Washington, amid a bitter dispute over alleged Russian interference in the recent US presidential election.
A spokesman for President Vladimir Putin said the Kremlin's reaction would cause the US "significant discomfort".
However, he hinted that Russia may wait until Donald Trump, who has played down the hacking claims, becomes president.
Russia has denied any involvement and called the US sanctions "ungrounded".
On Thursday, the US state department declared the 35 Russian diplomats from the Washington embassy and the consulate in San Francisco "persona non grata", and gave them and their families 72 hours to leave the US.
Sanctions have also been announced against nine entities and individuals including two Russian intelligence agencies, the GRU and the FSB.
And the US will close two compounds - in New York and Maryland - used by Russian intelligence services.
President Barack Obama had vowed action against Russia amid US accusations that it directed cyber-attacks against the Democratic Party and Hillary Clinton's campaign.