UFO or Blimp above the opening ceremony of the London Olympics?

This object hovering above the Olympic stadium appears in a video of Sky News and Telegraph.

Was it a blimp used for filming the stadium exteriors or a balloon? But even if it was, it is strange that it would be allowed to fly so close to dangerous pyrotechnics being shot directly at it.


Anyhow it looks very strange and if is a UFO, keep in mind, governments have had this technology for years, so probably it may not be extraterrestrial.





Update: Genuine UFO sighting...



Source: erigia007 c0nsp1tracynutj0b stephenhannardadguk