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.

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

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.