One of its two runways was closed

All flights have resumed at Heathrow Airport in London after earlier reports of a drone sighting.

The airport said it was working with police to prevent any threat to operational safety.

One of its two runways was closed and all departures were stopped as a precautionary measure while an investigation took place.

In a tweet, the airport has apologised to passengers for the inconvenience.

It's not known if a drone was found.

There was massive disruption at nearby Gatwick Airport in the run up to Christmas, after a number of drone sightings saw thousands of flights cancelled.