Drones have sparked "very significant disruption for passengers"published at 07:36 Greenwich Mean Time 20 December 2018
Gatwick chief operating officer Chris Woodroofe has told the BBC that the drones had sparked "very significant disruption for passengers" but that police did not want to shoot them down because of the risk from stray bullets.
He told Today: "Last night there were 10,000 people disrupted.
"There were 6,000 people flying in from around the world to Gatwick who were diverted to alternative airports as we closed, there were 2,000 people who didn't take off from their origin airport and there are a further 2,000 people here who couldn't fly to their destination because the airport closed."
He added that 20 police units from two forces were hunting for the pilot, saying: "The police are looking for the operator and that is the way to disable the drone.
"We also have the helicopter up in the air but the police advice us that it would be dangerous to seek to shoot the drone down because of what may happen to the stray bullets."