Kiev's latest attack on Russia's key infrastructure attacked the second -layer refinery within a week of space.
A Russian oil refinery in the South Volgler area was hit by fragments in the Ukraine drone attack.
The regional governor Andrei Bocharov confirmed the overnight attack. He said that on Friday, the fire was "quickly extinguished" and a injured worker was hospitalized.
The attack was the latest Salvo and Russia's war in the campaign of Ukraine's destruction of refineries, oil warehouses and industrial sites.
Ukraine's head of the False Information Center Andriy Kovalenko described the Volggram refinery as one of Russia's largest refinery.
Earlier this week, Kov claimed that the Lukoil refinery was attacked in the Nitzi Novgorod Rhoda area east of Moscow. A drone attack last week forced a refinery of Ryazan in southeastern Moscow.
The Russian Ministry of Defense said on Friday that Ukraine UAV was knocked down overnight, including 25 in the Rostov region in the south and 8 Volgagler.
Overnight, Russia launched a number of drones in the Odesa region in southern Ukraine, and four people were injured in the city of Jonomoosk.
He said that these attacks also partially destroyed the city's power supply and damaged their hospitals, administrative buildings, grain warehouses, houses and some trucks.
At the same time, the Ukrainian Air Force said its defense system lasted 59 times in Russia's drones 102 times.
The attack occurred in a day of killing 9 people in the strike of Russia's drone in a residential area in eastern Ukraine Sumy.
After the attack, Andriy Yermak, the person in charge of the president's office, accused Russia of the SHAHED drone accused of being accused of "increasing the number of civilian casualties".
On Friday, the Russian Investigation Commission stated that it was investigating 22 people in a occupied Russian village in September to November. It said the number includes eight women who were raped before being killed.
Investigators said that a Ukrainian soldier who was said to be responsible for the murder was arrested in western Kurusk. Ukraine has controlled dozens of border towns since launching offensive last year.
Since Russia and Ukraine began to conflict about three years ago, Russia and Ukraine have accused each other allegations to kill civilians. The latter claims that Moscow's troops murdered hundreds of civilians in Bucha Town near Kiev.
Moscow rejected these allegations and charged the Kiev Sub -recording. This statement was rejected by several independent factual inspection organizations and media.