The number of injured people has risen to 24 after seven carriages of a passenger train derailed in Russia's Ulyanovsk region on Friday.

Seven cars of a Chelyabinsk-Moscow passenger train derailed on Friday in Russia’s Ulyanovsk region, according to Russian Railways.

Ukraine has reportedly launched overnight strikes on an oil refinery and a chemical plant in western Russia.

On the night of October 18, drones attacked the Veshkayma substation in Russia’s Ulyanovsk region, causing two explosions and a fire that temporarily cut power, according to Andriy Kovalenko, head of Ukraine’s Center for Countering Disinformation. The 500 kV facility is a key transit point for electricity from the Syzran and Zhiguli hydroelectric plants to central Russia. Local reports said power was restored by morning.

Ulyanovsk airport resumed arrivals and departures of aircraft at 07:00 Moscow time and Kazan airport resumed operations at 07:30 Moscow time, according to the press service of the Federal Air Transport Agency.

Temporary restrictions for takeoff and landing have been imposed in airports of Penza and Ulyanovsk, the Federal Air Transport Agency said, News.az reportsc iting TASS.