A cyber attack on a provider of check-in and boarding systems has caused mass disruption at several major European airports, including London's Heathrow, the continent's busiest.

The attack resulted in hundreds of flight delays and several cancellations on Saturday local time in Europe, according to flight tracker Flight Aware.

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

Dublin Airport, Brussels Airport and Berlin Airport were also affected by the attack, they said in separate statements.

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

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