Derek Burden, from Luton, was working on the 16th floor of a building in Covent Garden when he snapped this photo of the London cityscape for his wife.
‘I was waiting for some materials to arrive so I thought I would step out onto the balcony to have a cup of tea. I was 16 floors up and I thought I would take some pictures of the view for my wife who doesn’t get to come to London much.
I didn’t notice anything at the time because I was focusing on getting in all the sights but when I showed Sarah that weekend she said “What are those lights in the corner?”‘
The classic saucer shaped UFOs are remarkably similar in size and Burden claims the photo was not taken from behind glass that could have caused a reflection.