The Ukrainian military struck the Lukoil-Nizhegorodnefteorgsintez refinery in Kstovo, Russia, according to Ukraine’s General Staff.

According to its statement posted on Telegram on Thursday, the strike hit the refinery, triggering a fire on the facility’s grounds.

Preliminary reports indicate that the AVT-6 primary oil processing unit was struck, though the full extent of the damage is still being assessed.

The Lukoil-Nizhegorodnefteorgsintez refinery is one of Russia’s largest oil refining facilities. It ranks fourth in the country by processing capacity and second in gasoline production.

The plant can process around 15 million tons of oil annually and produce approximately 5 million tons of gasoline, supplying fuel to the Moscow region.

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Earlier, Gleb Nikitin, governor of the Nizhny Novgorod region, said around three dozen Ukrainian drones attacked the region overnight.

He said falling drone debris caused minor damage to an industrial facility and several residential buildings. According to Nikitin, one person was killed and four others were injured, one of whom was hospitalized.

Emergency services are working at the scene.

Although the governor did not identify the targeted facility, analysis of eyewitness footage by Russian outlet Astra indicated that the damaged enterprise was Lukoil-Nizhegorodnefteorgsintez.

Previous strikes on Lukoil-Nizhegorodnefteorgsintez

The Lukoil-Nizhegorodnefteorgsintez refinery had previously been targeted in Ukrainian drone strikes in April, May, and June 2026.

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Fires broke out in Kyiv’s Shevchenkivskyi district as officials warned of a multi-wave Russian attack on the capital.

The refinery was recently attacked on June 24 and, according to industry sources cited by Reuters, halted oil refining after damage to its AVT-5 primary processing unit, which accounts for roughly 25% of its capacity.

The facility was reportedly preparing to resume operations by increasing the load on its remaining units.

Other facilities hit overnight

Ukraine’s General Staff also reported additional strikes on Russian military targets.

The targets included a Russian unmanned aerial vehicle (UAV) storage site near Kamianka in the Zaporizhzhia region and a railway bridge over the Siverskyi Donets River near Stanytsia Luhanska, which served as a key Russian logistics route for transporting personnel, weapons, and military equipment.

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In addition, a Russian command and observation post near Vilshana in the Kharkiv region was also reportedly struck.

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