The airports of Cheboksary, Nizhny Novgorod, Samara and Ulyanovsk have suspended operations.
Restrictions were introduced at the airports of Cheboksary, Nizhny Novgorod (Chkalov), Samara (Koromuch) and Ulyanovsk (Brataivka), the Federal Air Transport Agency reported on Sunday. "Temporary restrictions have been placed on the reception and release of aircraft," the agency said in a message on Messenger Max.