The airports of Orenburg, Cheboksary and Ufa, reported in Federal Air Transport Agency.
"Orenburg Airport. Temporary restrictions on the reception and release of aircraft have been introduced. Restrictions are necessary to ensure flight safety," the message on the department's channel in Maks says.
Similar restrictions apply at Cheboksary and Ufa airports.
Earlier on Wednesday night, the airports of Kazan, Bugulma, Nizhnekamsk, Samara, Ulyanovsk, Sochi, Penza and Saratov.