MOSCOW, December 22. /TASS/. The Grabtsevo Airport in Kaluga was closed temporarily and has now returned to normal functioning, the air harbor says.

"The Kaluga Airport <…> is operating normally. Temporary restrictions were introduced for air harbor’s operations on Friday, December 22, to support civilian aircraft flights safety," the Airport noted.

On December 22, the Russian Air Defense destroyed a Ukrainian drone in the Moscow Region.