UFO's in Malvern Wells

Does anyone remember the incident or story about a UFO crash in the grounds behind Abbey College in Malvern Wells. I remember reading about it many years ago but have been unable to find the UFO website it was on. Happened in the night/dark, sometime in the 1980's or 1990's. Apparently there was a lot of activity the military and police closed the place off. Bright lights were seen amongst the trees in the College grounds and no one was allowed to approach.