MOSCOW, Jan. 24 (Xinhua) -- Moscow's air defense systems were actively engaged in repelling a wave of Ukrainian drone attacks in the early hours of Friday, Moscow Mayor Sergei Sobyanin wrote on his Telegram channel.

Drone attacks occurred in multiple locations surrounding Moscow, including the Kolomna and Ramensky urban districts, southeast of the capital, where air defense forces successfully intercepted the drones, Sobyanin wrote.

Preliminary reports indicate no significant damage or casualties from falling debris. Emergency response teams were immediately dispatched to the affected sites, he wrote.

In the Podolsk urban district, two additional drones were shot down by air defense systems as they approached Moscow. Russian forces also neutralized a drone in the Troitsky Administrative District and another in the Shchyolkovo urban district of Moscow, according to the mayor.

As a precautionary measure, temporary restrictions on aircraft arrivals and departures were imposed at Moscow's Vnukovo, Domodedovo and Zhukovsky airports. ■