A woman was killed Sunday at the NHRA Arizona Nationals in Chandler, Ariz., when she was struck by debris from an accident involving Top Fuel driver Antron Brown.

The Gila River Police Department confirmed that an adult female was killed at the Firebird International Raceway during the NHRA races, but they did not release her name.

Brown was racing Troy Buff when Brown's left rear tire separated from the car and he lost control. The car crossed the center lane and hit the retaining wall as the tire bounded off the track surface.

USA Today reported the woman was a member of a Nostalgia Funny Car team, but ESPN.com has been unable to confirm her affiliation or the reason she was at the track.

The NHRA said Brown was uninjured in the accident.

"We're racers and we race and I'm ok," Brown said in a statement released by his team, Don Schumacher Racing. "It all happened so quickly and I want to thank the NHRA Safety Safari for being there so quickly to help get me out of the car and also the track medical team for tending to me so quickly."

The release said Brown went to Chandler Regional Hospital for further observation.

NHRA officials are investigating the incident.

R.I.P.

Such a horrible tragedy, that should never happen.