Nicholas Nielander (30), his wife Sherry and friend Andrew Cade were trying to sort out a flat battery when the V-shaped and diamond lights in perfect formation caught their eyes.

Andrew videoed the scene on his mobile phone and the three watched the lights for about five minutes until they disappeared.

It was on the same night at the Rings End sighting at about 9pm. They also saw an aircraft fly over the light formation.

Nicholas, who has been brought up on military bases, said the lights were nothing like any aircraft lights he has ever seen and he was impressed the way the lights stayed in perfect formation.

"They were slow moving and appeared to be travelling with the wind," said Nicholas, adding he has never seen anything like it in his 15 years of living at Chatteris or anywhere else.

"They almost had the appearance of balloons with lights," said Nicholas, who estimates there were about ten to 20 lights but no noise.

"I have never seen a flying machine that appeared visually like that. They were not aircraft lights. I was intrigued as to what they were," he said.

Mark Burton, of Willey Terrace, saw the V formation and flashing red and blue lights over the Honeysome Industrial Estate area.

He also saw two small aircraft - one from the March direction and one from Warboys.

"At one moment, when the V lights turned for a few seconds, I could only describe it as the curved shape of the cabin of the spy plane Blackbird.

"It was definitely dark in colour, if not black," he said.

Did you see the lights, or do you have a possible explanation for the mystery? Post your comments below...