India, May 9 -- Chaotic air traffic control audio has captured the exact moment pilots aboard Frontier Airlines Flight 4345 realized their aircraft had struck a person on the runway during takeoff at Denver International Airport late Friday night. The Airbus A321, which was bound for Los Angeles, aborted takeoff shortly after the collision happened around 11:19 PM local time on Friday, according to airport officials.

Denver International Airport later confirmed that the unidentified person had jumped a perimeter fence and entered the runway area just minutes before the fatal incident. Authorities said the individual died at the scene and was not believed to be an airport employee. Officials added that the person had not yet been formally...