Lufthansa flight operations resume after major IT outage

German airline giant Lufthansa said Wednesday its operations were resuming hours after it was forced to cancel or delay flights over a major IT outage caused by construction work in Frankfurt.

Frankfurt airport, Lufthansa’s main hub, had earlier stopped most planes from landing to avoid overcrowding as thousands of passengers were unable to board flights.

The breakdown was resolved after several hours, with flights starting to return to normal in the afternoon, Lufthansa said.

The IT systems failure had been caused by construction work in the Frankfurt region that had damaged broadband fibre-optic cables, the airline said.