Three people have been wounded in the attack, according to the head of Belgorod Region

A Ukrainian drone has exploded near the entrance of the administration building in Russia's Belgorod Region, Governor Vyacheslav Gladkov has said.

Three people were injured in the "terrorist strike" in Belgorod, Gladkov wrote in a post on social media on Tuesday.

The administration's facilities manager has been hospitalized with shrapnel wounds to his legs, abdomen and arm, the governor said. Two women requested medical attention, one also an employee and another a visitor, he added.

The exterior and glazing of the administration building have been damaged as result of the attack, Gladkov said.

The governor also published a video of the strike, which captured the drone exploding near the entrance to the building and civilians fleeing to safety.

Kiev targeted Belgorod Region with dozens of UAVS during the day. A civilian was killed in an FPV-drone attack on in the village of Belyanka, he said.

Drones also struck a passenger bus in the settlement of Shebekino and a private car in the village of Gruzskoe, leaving five people wounded, including a 15-year-old boy, Gladkov wrote.

Belgorod, Bryansk and Kursk regions, which all border Ukraine, have suffered from regular drone attacks on energy infrastructure and residential areas during the conflict between Moscow and Kiev.

Russian officials have described the aerial incursions as desperate "terrorist attacks" meant to compensate for the setbacks Kiev's military has been suffering on the battlefield.

Moscow has retaliated with a long-range strike campaign of its own, targeting dual-use infrastructure, including power grid facilities and military sites in Ukraine with missiles and drones. Russia maintains that it never targets purely civilian sites.