"To ensure the safety of civil aircraft flights, temporary restrictions have been introduced on the operation of Sheremetyevo, Domodedovo, Vnukovo, Zhukovsky and Kaluga airports," Rosaviatsiya said on Dec.

All four of Moscow’s airports have been temporarily closed without any reason given, according to Russia’s aviation watchdog. ‘Aircraft crews, air traffic controllers and airport services are taking all necessary measures to ensure flight safety,

“While other countries of the world are celebrating Christmas, Ukrainians are continuing to suffer from endless Russian attacks,” Ukraine’s human rights ombudsman Dmytro Lubinets wrote on Telegram.