FORT WORTH, Texas -- Two fans were injured at Texas Motor Speedway when a brake pad from one of the cars broke through the glass on the eighth floor of the Speedway Club above the track's first turn.
Speedway spokesman Mike Zizzo says the injuries weren't life threatening.
The accident happened Sunday during the NASCAR Sprint Cup race at the 1½-mile, high-banked track.
It was unclear from which car the brake pad came and what caused it to become a projectile that went through the tempered glass.
Zizzo said the speedway couldn't release any additional information on the injured people because of federal privacy laws.