Russian defenses intercepted a Ukrainian drone over the western city of Belgorod on Sunday, Mayor Valentin Demidov said in a statement.
No one was wounded or killed, the mayor said in a post on Telegram, but fragments from the drone damaged the windows and facade of an apartment building on the city's Yesenin Street. It also damaged 15 cars parked nearby, according to the mayor.
Crews will begin repairing the building Monday, he said.
Some background: The Russian mayor did not comment on where the unmanned aerial vehicle came from, but the reported attack comes a day after Russia's defense ministry said it intercepted a Ukrainian drone elsewhere in the Belgorod region, which borders Ukraine.
A string of drone strikes has peppered Russian cities, including the capital of Moscow, throughout the summer. Belgorod and other cities along the border are also frequent targets.
CNN's Rob Picheta contributed to this report.