Ukraine said its forces used long-range drones to hit Rosneft PJSC’s Saratov oil refinery early on 10 August, igniting large fires at the Volga River facility. Saratov region governor Roman Busargin confirmed an “industrial enterprise” had been struck, reporting one death and several buildings damaged. A person familiar with refinery operations told Bloomberg the 140,000-barrel-a-day plant halted crude intake after the attack, making it the third Russian refinery forced offline this month. The disruption threatens to tighten domestic fuel supply while freeing additional crude for export, traders said. The strike came amid a wider uptick in Ukrainian drone activity inside Russia. Moscow’s defence ministry said three people were killed in separate overnight attacks on the Tula and Nizhny Novgorod regions and that air-defence units downed drones heading toward the capital. The escalation precedes a U.S.-Russia summit scheduled for Friday in Alaska and underscores Kyiv’s efforts to degrade Russian energy and weapons production far from the front line.