
Ukrainian long-range drones on Friday struck an oil refinery in Tyumen, Western Siberia, a target located about 2,000 kilometers from the border with Ukraine.
Footage posted on social media shows a fire at the industrial complex, while Russian regional authorities confirmed that a drone fell within the refinery's territory.
The governor of the Tyumen region, Alexander Moor, stated that "a drone fell on the territory of the Tyumen oil refinery," adding that the incident caused a fire at the facility.
According to Russian officials, testimony from residents, and analysis published by the open-source intelligence projects Exilenova+ and Supernova+, the attack hit one of the refinery's processing units.
However, the extent of the damages has not been independently verified.
Geolocated footage shows flames engulfing part of the plant, including an oil processing unit protected by anti-drone nets.
A second plume of smoke seen in some videos is believed to be related to the refinery's excess gas combustion system.
The Tyumen Refinery, formerly known as the Antipinsky Refinery, is considered one of the largest independent oil refining plants in Russia and one of the largest in Western Siberia.
It has a processing capacity of about 8-9 million tons of oil per year and produces diesel, gasoline, liquefied petroleum gas, petroleum coke and sulfur.
The attack follows another Ukrainian operation against the same refinery on June 20.
Later, Ukrainian President Volodymyr Zelensky stated that the operation was carried out with improved long-range drones developed by the Ukrainian company Fire Point, capable of hitting targets up to 3,000 kilometers away.