Nearly 400 Ukrainian drones targeted Moscow and the surrounding region overnight, local authorities said Tuesday morning, as a separate strike in the southwestern Belgorod region injured at least 19 people, according to officials.

Moscow Mayor Sergei Sobyanin said 390 drones had been tracked in the skies above the wider Moscow region since Monday night, noting that “most” of them were intercepted. He did not report any damage or injuries.

Moscow region Governor Andrei Vorobyov said an apartment building in the town of Chekhov, located around 50 kilometers (31 miles) south of the Russian capital, was hit in a drone attack. Local authorities said the building’s facade and two apartment units were damaged, but added that there were no casualties.

Air defense systems downed “a few dozen” Ukrainian drones elsewhere in the Moscow region, including in Podolsk, Domodedovo and Kolomna, Vorobyov said.

Halfway between Moscow and Chekhov, Podolsk district head Grigory Artamonov reported property damage in several villages, including Koledino, where the fence of a home was damaged.