An individual who scaled a perimeter fence and entered a runway at Denver International Airport was fatally struck by a Frontier Airlines aircraft as it accelerated for takeoff, officials reported. The impact ignited an engine fire, prompting a full evacuation of the aircraft.

The flight, bound for Los Angeles International Airport from Denver, notified authorities of hitting a person on the runway around 11:19 p.m. Friday, per the airport's official social media update.

An airport representative confirmed the trespasser, who hopped the fence, succumbed to injuries just two minutes after gaining access to the secured area. Officials do not suspect the victim was affiliated with airport operations.

"We're stopping on the runway," the pilot radioed to air traffic control, as captured by aviation tracking site ATC.com. "We just hit somebody. We have an engine fire."

The captain informed controllers of 231 people aboard and described an individual crossing the runway.

Air traffic control acknowledged by saying trucks were en route, after which the pilot reported smoke inside the plane and initiated an evacuation directly on the runway.

Frontier Airlines identified the flight as 4345, noting pilots aborted takeoff after cabin smoke was detected. The source of the smoke remains under review in relation to the strike.

The jet carried 224 passengers along with seven crew members, according to the carrier.

"We are conducting a thorough investigation and coordinating with airport officials and safety agencies to collect additional details," Frontier stated.

Evacuation slides were deployed, and emergency vehicles transported passengers to the terminal. Authorities reported 12 with minor injuries, five of whom required hospital transport.

Passenger Jacob Athens shared footage of evacuees descending slides with luggage in tow and images suggesting engine damage.

"As we were lifting off, the engine exploded. Smoke was so thick we couldn't see a foot ahead," Athens recounted on Facebook, noting a wait exceeding an hour on the runway amid chilly conditions without immediate aid.

Additional clips depicted passengers methodically exiting the cabin and sliding to safety, instructed to move clear of the aircraft.

Denver International Airport informed that the National Transportation Safety Board was alerted, with runway 17L - the site of the mishap - shut down for probe before resuming operations Saturday near 11 a.m.

Transportation Secretary Sean Duffy posted online that the individual "breached airport security at Denver Int’l Airport, deliberately scaled a perimeter fence, and ran out onto a runway."

He emphasized: "No one should EVER trespass on an airport."

This event followed closely a separate tragedy where a Delta Air Lines worker died on duty at Orlando International Airport. Delta offered no specifics on the Thursday night occurrence or the employee's identity.

"Our priority is supporting the family and our Orlando colleagues through this hardship," the airline expressed. "We are partnering with local investigators to uncover the facts."