Britain’s air traffic control system said it is experiencing a “technical issue” that could delay flights today, the end of a holiday weekend and a busy day for air travel.
National Air Traffic Services said it had “applied traffic flow restrictions to maintain safety” and that engineers were working to find and fix the fault.
It did not give an estimate of how long it would take to fix the problem, or what had caused it.
European air traffic authority Eurocontrol warned of “very high” delays because of a “flight data processing system failure” in the UK.
Scottish airline Loganair said there had been “a network-wide failure of UK air traffic control computer systems.”
