New video shows deadly Denver runway collision involving Frontier Flight 4345

New video from Denver International Airport shows Frontier Flight 4345 striking a person on Runway 17L just after 11:19 p.m. Friday, a collision that killed the pedestrian and sent an Airbus A321 bound for Los Angeles International Airport into an emergency abort.

Airport officials said the person had jumped a perimeter fence roughly two minutes before being struck. The impact sparked an engine fire and forced the crew to stop the takeoff on the runway, turning a routine departure into a fast-moving rescue scene at one of the nation’s busiest airports.

Frontier said 224 passengers and 7 crew members were aboard. Multiple reports said the aircraft was evacuated after the impact, while others said 12 people reported minor injuries and five were taken to local hospitals. The video adds a visual record to the sequence crews and investigators are now reconstructing: the fence breach, the collision, the fire and the hurried evacuation.

The National Transportation Safety Board was notified, and Frontier said it is investigating the incident. Denver International Airport said the runway reopened before 11 a.m. the next morning, indicating that crews worked through the night to clear the site and restore operations on Runway 17L.

The footage is likely to sharpen scrutiny of how much of the perimeter breach was visible on airport surveillance, how quickly alerts moved between security and airfield crews, and what emergency communication reached the flight deck in the seconds before the abort. For investigators, the timeline is critical. For the public, the video may become the clearest window yet into how a person on the wrong side of a fence turned a departure into a fatal runway collision.