A cyberattack at a service provider for check-in and boarding systems has disrupted operations at several major European airports including London's Heathrow, Brussels and Berlin, causing flight delays and cancellations.

Collins Aerospace, which provides check-in and boarding systems for several airlines across multiple airports globally, is experiencing a technical issue that may cause delays for departing passengers, London's Heathrow Airport said.

RTX, Collins Aerospace's parent, was not immediately available for comment.

The attack rendered automated systems inoperable at Brussels Airport, allowing only manual check-in and boarding procedures.

"This has a large impact on the flight schedule and will unfortunately cause delays and cancellations of flights," the operator said in a st

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