Phoenix (AP) Phoenix residents are abuzz over the mysterious four red lights that appeared in Monday night's sky.
But a man who lives on the north side of the city claims he's responsible.
He told KTVK-TV that he used fishing line to attach road flares to helium-filled balloons, then lit the fares and launched them a minute apart from his back yard.
A phoenix police department helicopter pilot who witnessed the lights said they appeared to be flares, possibly hanging from one or more helium balloons.
Witnesses said the lights initially appeared to be in a straight line, then formed a square and then a triangle before disappearing.
The man interviewed, who asked not to be identified, said he believed turbulence created by a passing jet caused the balloons to move around.