People have spotted a UFO in the skies of Portsmouth on September 16, 2014.Johnny Blackwell, 23, of Trevor Road, Southsea, said: ‘I don’t believe in UFOs, but when I saw this I didn’t know what it was.‘It didn’t look like a cloud, and it was moving very fast.‘It was a grey, disc-like shape, which I know sounds like a stereotypical UFO, but that’s what it looked like.‘I don’t know much about military crafts, but this was very fast-moving and very odd to see.’Another observer, who declined to be named, said: 'My initial thought was it was an aeroplane, but it was just moving too quickly.'I was the only one that saw it but was quick enough to take the picture.Weather experts rule out the possibility that the object was a cloud, the town has been left wondering just exactly what it was flying over its homes on Tuesday evening.