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.

Long-range strike drones of Ukraine's Defence Intelligence hit a UAV production facility in the settlement of Obukhovo, Dzerzhinsky district, Russia's Kaluga Oblast on the evening of 12 March. Source: Ukrainska Pravda source in security services Details: The source reported that the Russians set up production lines for assembling drones inside the workshops of the Kaluga gas concrete plant.

Russian forces launched a combined attack on Ukraine in the night from March 12 to 13. Air defense systems operated across 11 regions of Ukraine, the Air Force of the Armed Forces of Ukraine reports.

Hours before the opening of the ceasefire talks, Russia claims that 'Ukraine carried out its biggest UAV attack ever' • Russia retaliated with its own missile and drone attack

The Russians were assembling UAVs in workshops of the Kaluga Aerated Concrete plant, according to the sources. Locals reported powerful explosions and a fire at the factory overnight into March 13. Kaluga social media channels mentioned alleged debris falls and a blaze in “industrial enterprise buildings.

Ukraine's defense intelligence launched long-range UAV strikes against a drone manufacturing facility in the Kaluga region of Russia, with production operations concealed at a different factory, RBC-Ukraine reports,

Long-range strike drones of Ukraine’s Defence Intelligence hit a UAV production facility in the settlement of Obukhovo, Dzerzhinsky district, Russia’s Kaluga Oblast on the evening of 12 March. Source: Ukrainska Pravda source in security services Details: The source reported that the Russians set up production lines for assembling drones inside the