Heathrow Airport LIVE: Passengers issued flight delays warning after 'technical issue'

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.

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