Sun-worshipers on Primrose Hill where a UFO was reported last Friday: The green open space has been a site of pilgrimage for Druids throughout the centuries,but at least one person thought otherworldly forces were at work at the nature spot this week. An eyewitness, who recorded his name only Andy G, made a report to the UK UFO Sightings website at 6am last Friday. It said "having a break at work in the early hours on Primrose Hill, no sighting but a deep resonating humming sound coming from the near distance but unable to place the source as it came from all directions at once,but strangely from no specific direction. "It is difficult to explain, and was witnessed by three other people at the same time.