Prior to the 2021 disclosure of Russian responsibility in the 2014 Vrbětice ammunition warehouses explosions, more than 130 people in Russian employ were based at the embassy including over 40 accredited as diplomats. Balkan Insight notes that "Czech security services have long seen the giant Russian embassy as a significant risk, and a base for Moscow’s intelligence activities throughout Europe." Following the expulsion of 17 April, the Embassy′s staff was reported to stand at 27 diplomats and 67 technicians. The expulsion ordered by the Czech Republic on 22 April is expected to reduce Russia′s diplomatic staff to 7 persons as well as 25 technical staff by the end of May 2021.