A cyberattack late Friday night left several European airports with crashed check-in and boarding systems. 

Passengers at major hubs like Brussels, Berlin Brandenburg, and London Heathrow were affected. The attack led to airlines moving to manual processes, which caused long lines and slower check-ins.

The disruptions left thousands of travelers stranded or delayed.

In a statement, Brussels Airport said the attack targeted their third-party service provider for check-in and boarding systems, not the airports or airlines directly..

“An attack was launched against our check-in and boarding system provider, which caused a major interruption in our services, affecting several airports across Europe,” a spokesperson from Brussels Airport said.