Ukrainian drones targeted a Russian oil refinery hundreds of kilometers from the Ukrainian border, the latest in a campaign of deep strikes aimed at disrupting Russia’s oil industry.
The May 31 overnight attacks on the facility in the central Saratov region — the second since March — did not appear to have caused any casualties
But a large fire and thick black smoke were reported at the plant belonging to the state-owned oil company Rosneft. Ukraine’s military said its drones targeted the Saratov refinery, along with several other…