KYIV: Several people were injured and houses and non-residential buildings were damaged as a result of Ukraine’s overnight drone attack on the neighboring Russia’s southwestern regions of Lipetsk and Voronezh, regional governors said on Tuesday.

Russia’s air defense units destroyed 12 drones over the Voronezh region that borders Ukraine, Governor Alexander Gusev said on the Telegram messaging app.

“Unfortunately, there were injuries,” Gusev said. “In central Voronezh, several people sustained minor injuries due to debris from a downed UAV (unmanned aerial vehicles).”

Several apartments in multi-story buildings in the city of Voronezh that is the administrative center of the broader Voronezh region were damaged, as well as houses in the suburbs, Gusev said.

Additionally, several commercial facilities throughout the region were damaged by falling drone debris, he said, without providing further details.

In the city of Yelets in the Lipetsk region a drone crashed in an industrial zone, regional governor Igor Artamonov said on Telegram.

“One person was injured and is receiving all necessary medical assistance,” Artamonov said.

The Russian defense ministry said on Telegram that its units destroyed 55 Ukrainian drones overnight over five Russian regions and the Black Sea, including three over the Lipetsk region.

The full extent of damage from the attacks was not immediately known. There was no immediate comment from Ukraine about the attack.

Both sides deny targeting civilians in their strikes during the war that Russia launched against Ukraine more than three years ago. But thousands of civilians have died in the conflict, the vast majority of them Ukrainian.

Ukraine has launched multiple air strikes on Lipetsk, a strategically important region with an air base that is the chief training center for the Russian Aerospace Forces.