UKRAINIAN kamikaze drones have blasted yet another Russian oil refinery as the country attempts to cut off fuel supplies to Putin's military. A succession of powerful explosions were heard in the Dzerzhinsky district in Kaluga Oblast overnight as flames and smoke filled the air. 8 Flames rage following a drone strike on an oil refinery in Russia's Kaluga Oblast 8 Three tanks containing diesel fuel and one containing fuel oil caught alight Credit: East2West 8 Dramatic footage showed a massive orange inferno at the Pervyy Zavod refinery following reports of several drones flying overhead. Moscow Mayor Sergey Sobyanin claimed a...