Flights are temporarily suspended at Rzeszow Airport in Poland because of security concerns.
The airport is closed between 09:00 and 11:00 due to Ukrainian crisis said Eurocontrol.
High delays are expected today.
Since the war, Rzeszow Airport is a vital logistics hub for aid and military supplies into Ukraine. It regularly receives cargo operations, including Kalitta Air Boeing 747s, Patriot missile systems, and US and UK VIP visits.
UPDATE 09:15 CEST
Flight operations are resuming.
UPDATE 09:16 CEST
Ryanair flight to Milan will be the first to takeoff.