https://www.independent.co.uk/news/uk/home-news/gatwick-drones-never-existed-sussex-police-investiga...

Mr Tingley said one of the “working theories” was that the damaged drone found close to the airport in Sussex was responsible for causing the disruption

Police do not have any footage of the flying machines at the airfield and are relying on accounts from witnesses and the discovery of a damaged device.