Secret Intelligence Service
Romania's Ministry of Foreign Affairs (MAE) has notified the Embassy of the Russian Federation in Bucharest that one of the embassy's diplomats will be declared persona non-grata and will be expelled from the country, according to a MAE press statement released on Monday.
Former spy Sergei Skripal and his daughter were poisoned by a military-grade nerve agent of a type developed by Russia, Theresa May has told MPs, according to BBC.
The PM said it was "highly likely" Russia was responsible for the Salisbury attack.
The Foreign Office summoned Russia's ambassador to provide an explanation.
Federal Security Service (FSB) of Russia had seemingly arrested former military intelligence officer Sergei Viktorovich Skripal in 2004 for acting as an agent for the British intelligence service. Moscow claimed that he had revealed his identity to the British foreign intelligence service - MI6 - in exchange of pecuniary and other benefits.
Serbian President Aleksandar Vucic met on Friday with British Director of the Intelligence Service MI6 Alex Younger, with whom he discussed cooperation in the intelligence service of the two countries.
Younger is in an official visit to the Republic of Serbia, writes Serbian daily "Vecernje Novosti".