A cyber attack on a provider of check-in and boarding systems has disrupted operations at several major European airports including London's Heathrow, the continent's busiest, causing flight delays and cancellations.

Collins Aerospace, which provides systems for several airlines at airports globally, is experiencing a technical issue that may cause delays for departing passengers, Heathrow said.

Brussels Airport and Berlin Airport were also affected, they said separately.

RTX, Collins Aerospace's parent company, said it was aware of a "cyber-related disruption" to its MUSE software at selected airports, without naming them.

Hours later, Dublin Airport said it was also facing minor effects from the issue, along with Cork Airport, Ireland's second biggest after Dublin.

"The impact is li

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