Russia's defence ministry said it shot down five Ukraine-launched missiles and 29 drones over the southern Russian Krasnodar region.
An oil depot in the Krasnodar region was on fire and people were injured, the regional governor said.
Meanwhile, employees at several businesses in Russia's Tatarstan region and its administrative centre of Kazan have been evacuated for safety reasons, Russian state news agencies reported.
Airports in the cities of Kazan and Nizhnekamsk in the same region imposed temporary flight restrictions for safety reasons this morning, said a representative for Rosaviatsia, the country's aviation regulator.
Unverified videos on social media showed drones flying over the Tatarstan region where both cities are located.
