Drones of the Security Service of Ukraine (SBU) have recently attacked the Tambov, Saratov, and Belgorod regions of Russia. Gas compressor stations and a warehouse of missiles for S-300/S-400 were hit,

Drone production lines were located on the grounds of an aerated concrete plant in the village of Obukhovo in Kaluga Oblast's Dzerzhinsky district, a military intelligence source claimed.

Drones launched by Ukraine's Security Service (SBU) struck two gas compressor stations and a warehouse storing missiles for Russia's S-300/S-400 air defense systems, a security source told the Kyiv Independent on March 14.

Video evidence shows drones slamming into industrial equipment, triggering powerful blasts at both sites. In a separate strike, SBU drones targeted a field warehouse stocked with missiles for Russia’s S-300 and S-400 air defense systems near Radkovka in Belgorod Oblast.