
In a coordinated move, four EU countries are expelling more than 40 Russian diplomats suspected of espionage.
Ireland, Belgium, the Netherlands and the Czech Republic issued deportation orders for a total of 43 embassy employees on Tuesday afternoon.
The move comes after similar actions taken by other EU members, including Poland, last week.
Belgian Foreign Minister Sophie Wilmès told MPs that the expulsions were "linked to the country's national security".
Speaking in parliament, Wilmès said that 21 staff members at the Russian embassy in Brussels and at the consulate in Anteerp were asked to leave the country, giving them two weeks to leave.
She added that the move was made in coordination with Belgium's neighbour the Netherlands, whose Foreign Ministry said it was expelling 17 Russian diplomats it considered to be "secretly active" as intelligence officers.
Ireland's prime minister, Micheal Martin, told MPs that his government had expelled four Russian diplomats after receiving security advice from its intelligence officials.
Martin said officials were asked to leave the state "because their activities are not in line with international standards of diplomatic conduct".
The Russian Embassy in Dublin rejected the "baseless decision", adding that it would "further worsen relations between the two countries".
Meanwhile, a Czech official told AFP news agency that the diplomat expelled from Prague was Russia's deputy ambassador.
"Together with our allies, we are reducing the presence of Russian intelligence in the EU," the Czech Foreign Ministry wrote in Titter.
On Wednesday, Poland expelled 45 diplomats accredited for involvement in alleged espionage in the country.
Polish Interior Minister Mariusz Kaminski wrote in Titter that Polish intelligence officials were "dismantling the Russian special services network in our country."
And earlier this month Bulgaria, Lithuania, Latvia and Estonia expelled a total of 20 Employees of the Russian Embassy in connection with activities "contrary to their diplomatic status".
Russia has tried to respond to such decisions with reciprocal movements, and earlier today announced the expulsion of 10 diplomats from Estonia, Latvia and Lithuania.