Ukraine on Tuesday they bombed targets in Russia with dozens of drones and missiles in an attack that crippled a major oil refinery and attempted to breach the land borders of the world’s largest nuclear power.

Russia and Ukraine have used drones to attack critical infrastructuremilitary installations and concentrations of soldiers in more than two years of war, and in recent months Kyiv has attacked Russian oil refineries and energy facilities.

In one of the largest Ukrainian drone attacks on Russia to date, Moscow claims to have shot down 25 Ukrainian drones in regions such as Moscow, Leningrad, Belgorod, Kursk, Bryansk, Tula and Orel. Waves of drone attacks continued throughout the day, according to the Ministry of Defense.

Russian authorities reported attacks on energy facilities, including a fire at the Lukoil oil refinery LKOKH.MM NORSI and drone destruction on the outskirts of the city of Kirishi, where the second largest oil refinery in Russia is located.

This was reported by industry sources. Reuters on condition of anonymity As a result of the attack, the main crude oil distillation unit (AVT-6) at the NORSI enterprise was damaged., meaning that at least half of the plant’s production has been stopped. Lukoil declined to comment.

According to industry sources, NORSI processes about 15.8 million tons of Russian oil per year, or 5.8% of the total volume of oil processed.

Border attack

Russia said its forces foiled an invasion from Ukraine on Tuesday and inflicted heavy casualties on the attackers after armed groups based in Ukraine They said they had launched a cross-border offensive.

The Russian Ministry of Defense said that Ukrainian “terrorist formations” are supported by tanks and armored personnel carriers. They tried to invade in three different directions. Russian Belgorod region around 3 a.m. Moscow time.

At least two Ukrainian armed groups, the Russian Freedom Legion and the Siberian Battalion, allegedly formed by Russians opposed to the Kremlinclaimed responsibility for the attacks.

Russia denied the fact that groups that Moscow calls puppets of the Ukrainian military and the US Central Intelligence Agency penetrated into its territory, but said that the border was attacked in several places.

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Belgorod Governor Vyacheslav Gladkov said that a member of the territorial self-defense unit of the region diedalthough he did not provide details about the event.

Information Agency TASS This is quoted by the Federal Security Service (FSB). Russian army killed 100 people and destroyed several blind vehicles while repelling attempted raids. (RTS)