Russia has said it will expel 60 U.S. diplomats and close the American consulate in St. Petersburg.
It has been done as part of a tit-for-tat retaliation against the expulsions of dozens of Russian diplomats ordered by the US and other countries earlier this week over the poisoning of a former spy in Britain.
Russia's foreign ministry said that 58 staffs from the U.S. embassy in Moscow and 2 from its consulate in Ekaterinburg will be declared "persona non-grata" and must leave Russia before April 5.
US President ordered 60 Russian diplomats, whom it considers as spies, to leave the country in response to the nerve-agent poisoning of a former Russian spy Sergei Skripal and his daughter Yulia in the UK and closed Russia's consulate in Seattle.
Further,14 European Union countries announced they were expelling a total of 30 Russian diplomats in a coordinated international response.
This was the biggest Western expulsion of Russian diplomats since the height of the Cold War.
Australia also announced that it would expel two Russian diplomats over the UK spy attack.
The U.K. has already called in the Organization for the Prohibition of Chemical Weapons (OPCW) to analyse the nerve agent (so-called Novichok type of nerve agent) used in the poison attack.