KYIV, Ukraine — Ukraine brought the war into the heart of Russia Saturday morning with drone attacks that local authorities said damaged residential buildings in the city of Kazan in the Tatarstan region, over 600 miles (1,000 kilometers) from the front line.

The press service of Tatarstan’s governor, Rustam Minnikhanov, said that eight drones attacked the city. Six hit residential buildings, one hit an industrial facility and one was shot down over a river, the statement said.

A video posted on local Telegram news channel Astra shows a drone flying into the upper floors of a high-rise building.

Local authorities said there were no casualties. Flights were halted at Kazan’s airport and all mass gatherings canceled.

The attacks, which Ukraine didn’t acknowledge in keeping with its security policy, comes after a Ukrainian attack Friday on a town in Russia’s Kursk border region using U.S.-supplied missiles killed six people, including a child.

— The Associated Press