UK flight disruption: What went wrong?
Passengers across the UK are facing widespread flight disruption after a computer failure at the UK's air traffic control centre.
The government has demanded a "full explanation", but it could be some time before the exact cause of the disruption is known.
The BBC's transport correspondent Richard Westcott looks at what might have gone wrong and whether passengers were in any danger.
12 Dec 2014
- From the section UK