1. Passengers left stranded as UK airports hit by technical issue – LIVE  London Evening Standard
  2. Airlines demand answers after Air Traffic Control failure  BBC
  3. Flights resuming after air traffic control issue, but dozens have been cancelled  BBC
  4. UK flight delays: traffic control restored but transport secretary warns of continued disruption – as it happened  The Guardian
  5. UK airports latest: Issue that grounded flights across UK revealed – as more than 150 flights cancelled  Sky News