Locals heard a huge bang and saw a brilliant light in the sky over the Berwyn Mountains in North Wales on the evening of January 23, 1974. Some have claimed the explosion was caused by an alien spaceship crash that was covered up by the authorities. Read more
A 1974 'UFO incident' in the Berwyn Mountains, dubbed the Welsh Roswell, was dismissed as an earthquake and a meteor combining, offical files show. Read more