Case: Several withnesses together with a police video recorded clip plus radar detection by the police car.  US military reported a training session of F16 during that period of time.  Record showed air craft has been ordered to check out something near the air base but classified as nothing to comment.  The UFO has been surrounded by F16s and eventually disappeared with high speed.

http://www.popularmechanics.com/technology/aviation/ufo/4304170