UAVs attacked the Novokuybyshevsk oil refinery in the Samara region of Russia, monitoring channels report. A fire broke out there. However, the extent of the damage is currently unknown. The Novokuybyshevsk refinery is the most powerful oil processing plant among the plants of the Rosneft Samara Group. Its design capacity is over 8.8 million tons of oil per year. The refinery produces RT grade jet fuel of the highest quality, intended for aircraft such as Su-27 and Shem-22M3. Russia regularly uses these planes to launch missile strikes on Ukraine.