“On the Russian side, he was strongly protested in connection with the unjustified decision of the Luxembourg authorities to declare an employee of the Russian Embassy in Luxembourg persona non grata,” the Russian Foreign Ministry said in a statement.
The Russian Foreign Ministry noted that this unfriendly step would have a negative impact on Russian-Luxembourg relations.
The Foreign Ministry stressed that the Russian side reserves the right to retaliate.
Earlier, Russia, as a response, announced the expulsion of a number of employees of the embassies of Belgium and the Netherlands.
On April 6, the Luxembourg Foreign Ministry announced the expulsion of one Russian diplomat from the country.
As specified, the diplomat must leave the country within 15 days.