The airport is closed to all incoming and outgoing flights. "To ensure the safety of civilian aircraft, temporary restrictions have been imposed on the operation of Kazan airport this morning," the Federal Air Transport Agency said.

This follows similar restrictions previously imposed on airports in Moscow and Kaluga due to the perceived threat of drone attacks. Read also: Russian airports closed due to drone attack The Russian Defense Ministry claimed to have intercepted multiple drones overnight,

A large-scale Russian attack on Ukraine triggered an air alert across the country on Tuesday morning. However, it wasn't just a difficult morning for Ukrainians; Russians also encountered issues. A drone attack led to the implementation of the "Carpet" plan at several airports in Russia.