A Frontier Airlines flight reported it struck a pedestrian at Denver International Airport

• A Frontier Airlines flight reported it struck a person at Denver International on Friday, the airport said.
• Denver International added that a "brief engine fire" was extinguished by fire fighters at the scene.
• Frontier said it was investigating the incident and was "deeply saddened by this event."

A Frontier Airlines flight reported that it had struck a pedestrian at Denver International on Friday evening, the airport has said.

Denver International said on social media that Frontier Flight 4345 reported hitting a person during takeoff at approximately 11:19 p.m., adding that firefighters tackled a "brief engine fire" at the scene.

"The NTSB has been notified. Runway 17L will remain closed while the investigation is conducted," it added.

In a statement, Frontier said there were reports of smoke in the cabin and that the pilots aborted takeoff.

The Airbus A321, which was destined for Los Angeles, was carrying 224 passengers and seven crew members when the incident occurred, the airline added.

"We are investigating this incident and gathering more information in coordination with the airport and other safety authorities," the statement continued. "We are deeply saddened by this event."

In an audio recording of the moment shared by ATC.com, one of the Frontier pilots can be heard saying: "Frontier 4345, we're stopping on the runway. We just hit somebody, we have an engine fire."

This is a developing story. Check back for details.