'I didn't notice it when I took the picture,' said Mr Rahman, 28, of London Road, North End. 'But then I looked a bit closer and zoomed in. It's a bit weird really, it's quite freaky.'
(Via The Anomalist.)
Sadly, the photo in the article is too small to be of much use. But what's visible looks suspiciously like one of Billy Meier's "beamships."