The Southwest jet appears to have mistakenly accelerated on a taxiway that runs parallel to Runway 17R, reaching about 70 knots before slowing.

When the plane started to accelerate on the parallel taxiway instead of the runway, an air traffic controller canceled the takeoff clearance. No injuries were reported. "Southwest is engaged with the NTSB and FAA to understand the circumstances of the event," a spokesperson for the airline said. The flight was bound for Albany, New York.