A reservations systems glitch slowed down thousands of airline customers around the world Thursday morning, USA Today reports.
The scope of the disruption was not immediately clear, but – for now – it seemed that the snafu had not snowballed into a major meltdown.
The glitch affected check-ins on at least a half-dozen airlines, all of which use a reservation system made by IT firm Amadeus.
Southwest, Air France, Lufthansa, Qantas and China Air were among those affected by the “network issue” at Amadeus.
"Amadeus technical teams took immediate action to identify the cause of the issue and restore services as quickly as possible," the IT firm said in a statement to CNN. "That action is ongoing with services gradually being restored."
Still, the glitch had affected some passengers among the affected carriers at airports across the world, including London Heathrow, Seoul Incheon, Frankfurt and Zurich. In the U.S., it had affected some of Southwest's airports, such as Baltimore/Washington, Washington Reagan National and Dallas Love.