Milan, Dec. 28 (LaPresse) – Ukrainian defense forces have struck the Syzran oil refinery in Russia's Samara region, along with other Russian military facilities in the Luhansk and Donetsk regions. This was reported by the General Staff of the Ukrainian Armed Forces on Telegram, according to Ukrinform. The attack was carried out using drones, the Ukrainian armed forces specified. The annual processing capacity of the refinery struck ranges from 7 to 8.9 million tons of oil per year.