4 sources are reporting on this story. BBC Business, BBC News, BBC UK are covering this developing story.
Sentiment across sources: 4 neutral.
Key entities: Heathrow, Gatwick.
BBC News reports: Departures from a number of airports have been affected by a technical problem affecting air traffic control provider Nats.
BBC News reports: Departures from a number of airports have been affected by a technical problem affecting air traffic control provider Nats.
BBC UK reports: Departures from a number of airports have been affected by a technical problem affecting air traffic control provider Nats.
BBC Business reports: Departures from a number of airports have been affected by a technical problem affecting air traffic control provider Nats.