U.S. Air Force F-15 Fighter Jet Pilots Chase UFO
over the UK, 12 January 2007, Daytime

Comment by the video source:
“On Friday, January 12th, 2007, London Military Air Traffic Control contacted a flight of US Air Force F-15s out of RAF Lakenheath, Suffolk, UK, to intercept an unknown target they had picked up on radar at 3000 to 4000 feet altitude. The F-15s, call-sign Gator, went to investigate, and got a solid radar-lock on the unidentified target. They made two passes and passed the object, which was at 17,000 feet on the first pass and then 17,700 feet on the second pass. They described it as black in colour and stated that it was not a bird and unlike any aircraft they had ever seen.”

The audio is genuine, but the video has nothing to do with this UFO incident:

http://www.youtube.com/watch?v=FqjlvcTSW2k