Drones launched by Ukraine’s State Security Service were responsible for an overnight attack on an oil depot in Russia’s Rostov Oblast, an intelligence agency source told the Kyiv Independent on July 13. “Last night turned out to be very hot for the Russian oil depot in the Tsimlyansky district of Rostov (Oblast),” they said. “According to our information, it was SBU drones that (caused the explosion) at the facility where various brands of gasoline and diesel fuel with a total volume of 12,500 cubic meters were stored.” Rostov Oblast Governor Vasily Golubev earlier talked about an attack on t…