UFO captured on camera flying over South Korea - Jan 15, 2012

Flying Saucer captured on camera flying over South Korea.

Jeonbuk Jeongeup above the middle of downtown to the emergence of "UFO" an unidentified flying object in the camera.

Is it possible that this object is a man-made craft? It is known that many countries have(secret) anti gravity craft or is this object of extraterrestrial origin.