US President Donald Trump and German Chancellor Angela Merkel have praised the North Atlantic Treaty Organisation decision to expel seven members of the Russian diplomatic missions to the alliance.
As UNIAN reported earlier, European Union member states, the USA, as well as Ukraine announced plans on Monday to expel more than 100 Russian diplomats in retaliation for the attack.
"We know for certain that this is a result of colossal pressure and colossal blackmail, which is Washington's chief instrument in the global scene", said Lavrov.
"When one or two diplomats are asked to leave this or that country, with apologies being whispered into our ears, we know for certain that this is a result of colossal pressure and blackmail, which is Washington's chief instrument in the worldwide scene".
"Rest assured, we will respond. No one wants to put up with such loutish behavior and we won't", Lavrov said, reiterating Moscow's warning that it was preparing a tit-for-tat response.
"Russia has the potential to be a partner with Europe ..."
Former Russian spySergei Skripal, 66, and his daughter Yulia, 33, were admitted to a hospital on March 4 after being found unconscious in the southern English city of Salisbury.
Britain earlier ordered the expulsion of 23 Russian diplomats after blaming Moscow for the attack on Skripal and his daughter, who remain in critical condition.
Skripal was granted refuge in the United Kingdom following a 2010 spy exchange between the US and Russian Federation. Stoltenberg's statement followed the earlierdismissal of more than 140 Russian diplomats from 24 different countries.
All in all, on Monday, about 100 Russian diplomats were expelled from 16 European countries, as well as US, Canada and Australia.
The Russian foreign ministry said: "This provocative gesture of notorious solidarity with London, made by countries that preferred to follow in London's footsteps without bothering to look into other circumstances of the incident, merely continues the policy of escalating the confrontation".
Prime MinisterTheresa May, answering questions about Britain's response to Russia's suspected involvement in a poisoning in England, said her government was conducting a review of visas issued to wealthy foreign investors.
"We will continue to work for a meaningful political dialogue with Russian Federation", said Stoltenberg.
Russian Federation denies responsibility and has vowed a "tough response" to the expulsions.
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