As noted in the department, the European Union regrets the "unfounded threat of Russia" to break off diplomatic relations with Bulgaria. 

“The European Union deplores the unfounded threat of the Russian Federation to break off diplomatic relations with Bulgaria in response to Bulgaria's decision, in full compliance with international law, to expel 70 employees of the Russian embassy who acted in violation of the Vienna Convention on Diplomatic Relations,” the statement said.

At the same time, it is added that the European Union is in full solidarity with Bulgaria.

Earlier in Sofia it was announced that Bulgaria was expelling 70 Russian diplomats and embassy technical staff.

The official representative of the Russian Foreign Ministry, Maria Zakharova, said that this decision of the Bulgarian authorities was made by order of external forces.

Later, Russian Ambassador to Sofia Eleonora Mitrofanova announced a possible break in diplomatic relations due to the mass expulsion of Russian diplomats from Bulgaria.