More than 100 people are expected to gather in a Suffolk forest on Tuesday night to mark 25 years since a famous UFO sighting.
A reported sighting of UFOs took place at Rendlesham
During the nights of 26 and 27 December 1980, US servicemen at RAF Woodbridge and Bentwaters reported mysterious lights in Rendlesham Forest.
The strange lights included a glowing metallic triangle and a hovering object with red and blue lights.
UFO enthusiasts are hoping there might be more sightings during the night.
Brenda Butler, a local resident who has written about the events of 1980, believes the sightings of 25 years ago were real.
Patrol car lights
"People who were coming up the Butley Road and who were in Woodbridge, Melton, Leiston and all around the area saw structured craft," she said.
"And that's not the first time - we can go way back to the 1600s and we've had lights in the sky and in the forest."
In 2003, Kevin Conde, a former US security policeman said he had been responsible for the lights in the forest.
He said he and another airman shined patrol car lights through the trees and made noises on a loudspeaker as a prank.
"We just drove through the forest flashing the lights through the fog," he said.
Despite Mr Conde's claim, some witnesses do not believe they saw patrol car lights in Rendlesham Forest.
US Air Force Sergeant John Burroughs said: "The blue lights coming down from the sky...I still have never heard of any technology capable of doing what I saw happening."