Ukrainian drones targeted a Rosneft-owned oil refinery in the Russian city of Saratov overnight, sparking fires at the facility and a nearby Ozon warehouse, according to Russian Telegram channels and independent reports.

The Saratov Oil Refinery processes roughly 4.8 million metric tons of crude oil annually. Independent Russian outlet ASTRA identified a fire at the site through OSINT analysis following the attack. Videos shared on social media showed drones and Russian air defenses active in the region.

Saratov Oblast Governor Roman Busargin issued an alert about unmanned aerial vehicle threats around 2 a.m. local time and placed emergency services on full alert. A logistics hub operated by Russian e-commerce company Ozon also caught fire shortly after the refinery strike, with footage showing employees evacuating the premises.

This incident forms part of Ukraine's sustained campaign of long-range drone strikes against Russian energy infrastructure. The Saratov facility has faced repeated targeting in prior operations. Ukrainian officials have described such attacks as efforts to reduce resources available to support Russian military activities.

Earlier in the week, Ukraine conducted strikes on gas processing plants in the Arctic Yamalo-Nenets region more than 3,000 kilometers from the border, marking some of the deepest attacks of the conflict. Those operations involved FP-1 drones produced domestically in Ukraine.

Russian authorities have reported intercepting large numbers of drones in recent waves of attacks, though fires and damage at industrial sites have been confirmed through multiple channels. The strikes coincide with broader Ukrainian efforts to pressure Russia's war economy through hits on oil and gas facilities across multiple regions.