UFO files: Family film back by police teams
When a family saw 20 to 30 flashing red and white lights zig-zag their way through the sky they captured the eerie scene on camera to prove it happened.
The parents and their child were backed up by police officers and a police helicopter team who also witnessed the weird UFO and a whirring noise.
The crew reported the incident - which happened at 2.25am on November 17, 2003 over Bromley, Kent - to Swanick air traffic control and RAF Neatishead.
Officials checked their radar coverage but it revealed nothing unusual.
Report documents from the time state: "A policeman sent to investigate confirmed the sighting. Objects were moving faster than any man-made aircraft."
The files - released as part of thousands of pages disclosed today by the MoD - showed the police thought the lights might have been aircraft approaching Heathrow, but an audit of traffic by Swanick proved otherwise.
There was nothing showing on the airport approach and all traffic was at a high level.
An unnamed wing commander wrote that the authorities concluded: "Neatishead have reviewed the radar tapes for the time period specified and, other than routine air traffic in the area, nothing additional was detected in the area despite good radar coverage.
"Therefore, I can now confirm that the incident does not represent anything of air defence interest."