Sources within the intelligence agencies informed the Suspilne about this.
"The russian Ministry of Defense is complaining that dozens of Ukrainian drones visited up to eight regions last night: Belgorod, Bryansk, Tula, Kursk, Smolensk, Ryazan, Kaluga, and even Moscow. At least three substations and a fuel storage base were hit, resulting in fires," the source noted.
Read more: russia Aims to Protect its Oil Refineries, Plans to Expand "Miracle-EW" Systems to Counter "All Drones" from Ukraine

According to sources, the goal of the joint special operation involving the SSU, GUR, and SSO of the Armed Forces of Ukraine was the energy infrastructure that powers russian military defense industry. Following the attacks, some areas in russia experienced problems with electricity and water supply.
The russian Ministry of Defense claimed to have shot down 50 drones.
It is worth noting that the drones hit an oil refinery in the Smolensk region and at least two power substations in Kaluga and Bryansk.
The Smolensk region governor verified that a facility within the fuel and energy complex was attacked. Witnesses observed drones hitting an oil depot owned by the Lukoil company.
The aftermath of drone strikes in the Smolensk region of russia can be seen in the video by Alexander Kovalenko.
In the Kaluga region, Governor Vladislav Shapsha asserted that drones had inflicted damage on an energy infrastructure facility. Meanwhile, in the Bryansk region of russia, a fire erupted at an energy infrastructure facility, as confirmed by Governor Alexander Bogomaz.
Previously, Defense Express analyzed how much time it would take for russia to cover the refineries with air defense systems and whether Pantsir systems would be sufficient.
Read more: russian Shahed Drones Production, Oil Refinery Hit by Ukrainian Drone that Flew Over 1200 km