Ukrainian long-range drones set Rosneft PJSC’s Saratov refinery ablaze early Sunday, triggering a fire visible across the Volga River city and forcing the 140,000-barrel-a-day plant to halt crude intake. Regional governor Roman Busargin said one person was killed and an industrial facility was damaged, while local media reported brief flight delays at Saratov’s Gagarin airport. Ukraine’s General Staff later confirmed it had targeted the refinery, the third Russian oil plant hit this month. Industry analysts said the outage could trim near-term domestic fuel output and prompt Rosneft to reroute as much as 200,000 barrels a day of crude to export markets. Hours after the refinery strike, at least three people were killed in a new wave of Ukrainian drone attacks that reached deep inside Russia. Governors in Nizhny Novgorod and Tula reported one and two deaths respectively, with the Arzamas Instrument-Building Plant— a sanctioned producer of cruise-missile guidance systems— among the sites hit. Moscow Mayor Sergei Sobyanin said air-defence units downed seven drones approaching the capital. Russia’s Defence Ministry claimed its forces destroyed 59 incoming drones overnight. Kyiv has not commented on individual sorties, but officials say the campaign aims to degrade Russia’s energy and weapons infrastructure ahead of a U.S.–Russia summit scheduled for later this week.