Russia has recalled its Washington ambassador for talks to prevent the “irreversible deterioration” of relations with the US.
The Russian government said Anatoly Antonov had been called back to Moscow as US ties had reached a “blind alley”.
The move came after President Joe Biden said Vladimir Putin would “pay the price” for alleged election meddling.
In an interview with ABC News, Mr Biden confirmed he thought the Russian president was “a killer”.
Mr Biden had been commenting on an American intelligence report that suggested Mr Putin had authorised an interference campaign in last November’s presidential election in the US.