Heathrow Airport LIVE: Passengers sent 3-hour warning after flight hubs 'cyber attack'

Heathrow Airport has warned passengers may experience delays because of check-in and boarding system glitches. The UK's busiest airport said a technical issue has been reported, with travellers warned by this "may cause delays".

It comes after Brussels Airport in Belgium was hit by a cyberattack on Friday night. Collins Aerospace, which provides check-in and boarding systems for airlines at multiple airports, said it was working to resolve the issue as soon as possible.

THIS IS A LIVE BLOG. SCROLL DOWN FOR THE LATEST UPDATES.