Heathrow airport grounds planes after drone sighting

London Heathrow airport halted departures for a short period Tuesday evening in response to a drone sighting.

The airport said it was working closely with London police “to prevent any threat to operational safety,” and said it had grounded planes as a precautionary measure.

After resuming operations, the airport said it would “continue to monitor” the situation and remained in contact with the police and air traffic control.

Hundreds of flights were canceled at Londons Gatwick airport last month during the busy Christmas period because of drone sightings.

The U.K.s Department for Transport proposed new legislation Monday to give more authority to police in dealing with rogue drones, and expand the restricted airspace around airports from a 1 kilometer radius to a 5 kilometer radius.

This article has been updated.

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