Rescue services, firefighters and soldiers work at the scene of an accident at the 42nd Training Air Base in Radom, central Poland, late 28 August 2025 (Issued on 29 August 2025). A F-16 pilot major Maciej Krakowian tragically died in an air crash on 28 August evening while practising for the annual air show in Radom. No bystanders were injured in the incident. EPA/PAWEL SUPERNAK POLAND OUT 
Polish military commanders said earlier that Polish and allied air forces had started operations because of Russia's attack on facilities located in neighbouring Ukraine.
"At the request of the army, the Polish Air Navigation Services Agency has issued a directive regarding restrictions in Polish airspace, including the temporary closure of two airports in Radom and Lublin," Marcin Hadaj, the spokesman for PANSA, told private television channel TVN24.
"There are certain restrictions in the eastern part of the country, and aircraft in Polish airspace must avoid this area," he said, adding that the airports could be shut for "approximately an hour".
He said the military would make the final decision.
Countries on NATO's eastern flank have been on high alert for potential airspace incursions since September, when three Russian military jets violated Estonia's airspace for 12 minutes just days after more than 20 Russian drones entered Polish airspace.
Polish jets intercepted a Russian aircraft on Tuesday that was flying a reconnaissance mission in international airspace over the Baltic Sea without a filed flight plan and with its transponder turned off.
(Reporting by Anna Koper and Pawel FlorkiewiczEditing by Gareth Jones)