A Frontier Airlines flight struck and killed a pedestrian who 'scaled a fence' during takeoff at Denver International Airport, leaving a horrific scene of 'human remains' on the runway.

Passengers were evacuated from the Frontier flight to Los Angeles after the collision during takeoff, which the Federal Aviation Administration is investigating.

Denver International Airport said the person had jumped a fence and dashed into the aircraft's path minutes before being struck.

The National Transportation Safety Board on Sunday said it is gathering information about the evacuation of a Frontier Airlines plane after it hit and killed a person on the runway at Denver International Airport during takeoff.

We know there are questions to be answered still,” DIA CEO Phil Washington said in a statement Sunday about the fatal Frontier Airlines crash.

The NTSB on Sunday said it is gathering information about the evacuation of a Frontier Airlines plane after it hit and killed a person on the runway at Denver International Airport during takeoff.