By Robb Ellis

CHICAGO (CBS) — A mother accidentally locked her baby inside a vehicle as heat indexes reached triple digits outside and immediately called 911 for help in Lincolnwood.

Officials said the car was not one the woman typically drove, which may have led to her accidentally locking the vehicle while putting the baby and other personal items inside.

READ MORE: Three Shot While Standing On Porch On West Side

Lincolnwood Fire Department Capt. Dean Friedlund said firefighters responded to a report of an infant inside a 2012 Infiniti SUV near the Olive Garden at Lincolnwood Mall on Friday afternoon.

READ MORE: As Lollapalooza Ends, Concerns About The Spread Of The COVID-19 Delta Variant Begin

He said the baby was inside the vehicle for about 10 minutes, and temperatures inside reached 112 degrees. A tow truck operator was called to open the locked car.

(Credit: CBS)

The baby was not injured but was transported to St. Francis Hospital for evaluation.

MORE NEWS: Chicago Weather: August Starts On The Cooler Side

Infants are especially vulnerable to heat exhaustion and heat stroke, one doctor told CBS 2.