Russian President, Vladimir Putin is angry with America.

And he is not mincing words.

He is threating to sack American diplomats who live in his country, the same way US sacked Russian diplomats in December 2016.

On Sunday, Putin said 755 US diplomats must leave Russia.

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He also warned that ties with Washington could be gridlocked for a long time, in a move that followed tough new American sanctions.

The Russian foreign ministry had earlier demanded Washington cut its diplomatic presence in Russia by September to 455 -- the same number Moscow has in the US.

"More than a thousand people were working and are still working" at the US embassy and consulates, Putin said in an interview with Rossia-24 television on Sunday.

"755 people must stop their activities in Russia," he ordered.

Putin added that an upturn in Russia's relations with Washington could not be expected "any time soon".

"We have waited long enough, hoping that the situation would perhaps change for the better," he said.

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"But it seems that even if the situation is changing, it's not for any time soon," the Russian president added.

The diplomatic fireworks between the two super-powers is not abating anytime soon as the US Senate, on Thursday overwhelmingly approved a bill to toughen sanctions on Russia for allegedly meddling in the 2016 US presidential election and for its annexation of Crimea in 2014.