PHOENIX -- Strange lights appeared above the Valley sky in various formations Monday night.
Witnesses reported the lights formed a vertical line, then a diamond shape, followed by a u-shape.
The lights reportedly moved from side to side and upward before disappearing one by one.
FAA officials told ABC15 that air traffic controllers in the Sky Harbor tower saw the lights, but noticed nothing on their radar, meaning it was not an aircraft.
An official with the North American Aerospace Defense Command (NORAD) said they checked with their command center that monitors the skies to see what is entering the Earth's atmosphere. They have no reports of anything entering the Phoenix area.
clipped from: www.abc15.com 