A damaged drone has been found by police at Gatwick Airport as officers attempt to step up their investigation into the drone chaos in the run up to Christmas.
A £50,000 reward has also been offered by the airport through Crimestoppers for any information that could lead to the arrest of those responsible.
It comes as the 47-year-old man and 54-year-old woman from nearby Crawley, who were arrested on Friday, were released on Sunday without charge.
Detective Chief Superintendent Jason Tingey, of Sussex Police, confirmed to Sky News that officers had found the damaged drone.
He said: "I can say yesterday we recovered a damaged drone close to the perimeter of Gatwick Airport... and we will be doing everything we can with regards to progressing a forensic examination of that drone.
"That's something that will be fast-tracked and expedited."
Following the release of the two drone suspects, Mr Tingley said he was "satisfied that they are no longer suspects in the drone incidents at Gatwick".
“Our inquiry continues at a pace to locate those responsible for the drone incursions, and we continue to actively follow lines of investigation," he said.
“We ask for the public’s continued support by reporting anything suspicious, contacting us with any information in relation to the drone incidents at Gatwick."
The first sighting of drones within the airport's perimeter came on Wednesday night, with flights grounded again around 5pm on Friday after fresh sightings.
Officers were prepared to blast the drones out of the sky with a shotgun, but authorities finally regained control over the airfield after the Army deployed military technology to guard the area.
The Israeli-developed Drone Dome system, which can detect drones using radar, is believed to have been used to jam communications between the drone and its operator.
Police believe more than one unmanned aircraft is responsible for the disruption and are investigating the possibility of multiple culprits.
Speaking on Friday, chief executive of the airport Stewart Wingate said the drone flights were "highly targeted" and have "been designed to close the airport and bring maximum disruption in the run up to Christmas".
He added: "These events obviously highlight a wider strategic challenge for aviation in this country which we need to address together with speed - the aviation industry, government and all the other relevant authorities.
"It cannot be right that drones can close a vital part of our national infrastructure in this way.
"This is obviously a relatively new technology and we need to think through together the right solutions to make sure it cannot happen again."
