A police helicopter from Wales has been reported as chasing a UFO across the Bristol Channel towards the North Devon coastline. The high-speed police chase took place on June 7 just weeks after the Ministry of Defence released files containing UFO sightings in the UK between 1978 and 2002. The three-man Welsh police crew gave chase after the mysterious object described as 'flying saucer-shaped' almost collided with their aircraft as they prepared to land at their St Athan base, near Cardiff. According to RAF Chivenor, no sightings were reported in North Devon the night in question. The helicopter continued to pursue the craft until it lost sight of it and was forced to turn back because it was running low on fuel.