By Deborah StocksPHOENIX, AZ -- Police have released dozens of 9-1-1 calls tied to an April sighting when hundreds of Valley residents spotted 'mystery lights' in the night sky over Phoenix.
The two CDs released Thursday have 40 to 50 minutes worth of audio from callers who saw the strange lights on April 21 and expressed everything from fear to disbelief.
Investigators now believe the lights were not UFOs, but instead flares attached to helium balloons.
If police find the person(s) responsible, they could be charged with disorderly conduct and public endangerment.
The lights made national headlines as videos shot by Phoenix residents were aired.
They also served as a reminder of the unexplained lights seen over Phoenix 11 years ago.