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.
"On the territory of an industrial enterprise in the Dzerzhinsky district, as a result of a UAV crash, a fire broke out in one of the buildings," Governor Vladislav Shapsha reported.
Ukrainian forces attacked oil depots in Russia's Tula and Kaluga oblasts overnight on Jan. 18, according to the General Staff and a Kyiv Independent's source in Ukraine's military intelligence (HUR).
A fire erupted at an oil depot in the city of Lyudinovo in Russia's Kaluga Oblast following a Ukrainian drone attack on the facility on Jan. 17, regional Governor Vladislav Shapsha said.
Key developments on Nov. 25: * Ukrainian drones hit oil depot in western Russia's Kaluga Oblast, source says * Ukraine can strike Russian territory with ATACMS missiles, White House confirms * Russian missile attacks on central Kharkiv, Odesa injures dozens * Ukraine's 3rd Brigade says it liberated Kharkiv Oblast village, took POWs * Ukraine developing
Preliminary evidence indicates that the cause of the crash was a technical malfunction. The helicopter's crew was killed, the Russian Defense Ministry said.
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