On Wednesday, March 13, the Federal Security Service (FSS) building in Belgorod was attacked by Russian volunteer units using Ukrainian drones, according to the sources of RBC-Ukraine in the SSU. Thus, during the attack, the volunteers used Ukrainian-made drones for the attack. It is not yet known whether the Ukrainian Defense Forces assisted in this. Attack on the Russian FSS building in Belgorod On March 13, the Russians announced an alleged drone attack on Belgorod. Propagandists claim that the FSS headquarters was hit. On March 12, it became known that volunteers of the Freedom of Russia L…