Four people inside a Planet Fitness were seriously injured today when a car crashed through the front of the Torrance gym.

The crash, reported around 4:55 p.m. at the gym at 20040 Hawthorne Blvd., near Del Amo Boulevard, injured one other person who did not want to be taken to a hospital, said Battalion Chief Bob Millea of the Torrance Fire Department.

Officials arrived on scene just before 5 p.m. and found a vehicle “all the way into the building to the back wall with one patient up on the hood of the vehicle, “Millea said.

The driver of the vehicle, described as a Torrance woman over 70 years old, was traveling eastbound in the parking lot when she “mistakenly pushed the gas pedal instead of the brake pedal,” said Sgt. Paul Kranke of the Torrance Police Department.

The vehicle went up a curb and crashed through the gym’s front window, causing four people to sustain major, but not life-threatening, injuries, Kranke said.

The driver was not injured, Kranke said. Investigators did not suspect drugs or alcohol were involved, Kranke said.