<p>Moscow: The airport in Russia's southwestern city of Kazan was temporarily closed for flights on Friday, the aviation watchdog said without disclosing the reason.</p><p>Such closures in Russia usually indicate ongoing or expected Ukrainian drone attacks.</p>
<p>Moscow: The airport in Russia's southwestern city of Kazan was temporarily closed for flights on Friday, the aviation watchdog said without disclosing the reason.</p><p>Such closures in Russia usually indicate ongoing or expected Ukrainian drone attacks.</p>