A drone attack targeted a major oil refinery in Russia’s Leningrad region overnight on March 26, causing damage to industrial infrastructure, according to local authorities and media reports.
Regional governor Alexander Drozdenko said more than 20 drones were involved in the attack, which was repelled over the Kirishi district. He confirmed that damage occurred in an industrial zone but reported no casualties.
Local residents, cited by media outlets, said the target was the Kirishinefteorgsintez (KINEF) refinery in the city of Kirishi — one of the largest oil refineries in Russia. The facility, owned by Surgutneftegas, processes up to 20 million tons of crude annually, accounting for roughly 7% of the country’s total oil refining capacity. It produces gasoline, diesel, kerosene, fuel oil, and petrochemical products.
Russia’s Ministry of Defense claimed that a total of 125 drones were shot down overnight across multiple regions, including Belgorod, Bryansk, Kaluga, Kursk, Leningrad, and others, as well as near Moscow, over occupied Crimea, and the Black Sea.
The Kirishi refinery has been targeted multiple times before. Ukrainian drones reportedly attacked the facility in March 2024 and again in March, September, and October 2025. Following one of those strikes, the refinery temporarily halted operations at its primary distillation unit.
The latest attack comes amid a series of strikes on Russia’s energy infrastructure. Earlier this week, major Baltic Sea oil ports in Primorsk and Ust-Luga were also targeted by drones.
