Authorities say an 80-year-old driver accidentally hit the gas pedal instead of the brake when she crashed through the front doors of a Northern California health club, killing one person and injuring five others.

Livermore police say the woman was trying to park Tuesday in front of the gym, about 45 miles east of San Francisco. The car plowed through the club's doors and into a workout class shortly before 6:30 a.m. PDT.

Police say a 49-year-old woman died at a nearby hospital and that the five people injured are expected to survive.

Authorities say the driver wasn't arrested or cited and that alcohol and drugs weren't a factor. A police report of the crash will be sent to prosecutors to determine if the woman should face criminal charges.