(MENAFN) A cyberattack on a third-party system supplier has led to significant flight interruptions at multiple key European airports, including London’s Heathrow as well as Brussels and Berlin, officials reported Saturday.

Brussels Airport verified at least four flight cancellations Saturday morning, involving departures to Rwanda and Amsterdam, subsequent to the Friday night assault that disabled automated check-in and boarding services.

The airport indicated that only manual check-in options were operational, cautioning about a “large impact on the flight schedule” with further delays and cancellations anticipated.

Berlin Airport also alerted travelers to expect “longer wait times than usual” due to the disruption.

“We are working on a quick solution,” the airport stated in a message on its website.

Similarly, London Heathrow advised passengers of delays, attributing the problem to a “technical issue” at Collins Aerospace, a company providing check-in and boarding platforms to various airlines worldwide.

“We advise passengers to check their flight status with their airline before travelling,” the airport added, noting that additional staff had been assigned to support travelers.

Collins confirmed that the breach targeted its MUSE software, which facilitates passenger check-in and baggage drop at selected airports, a British daily reported.

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