Excerpts from StCharlesil.gov:

At 10:39 p.m. Feb. 22, 2018, the St. Charles Fire Department was dispatched to an activated fire alarm at the Caroll Towers, 200 N. Second Street. Firefighters arrived at 10:41 and found a working kitchen fire on the second floor of the six-story building, with a female occupant unable to exit the fire apartment. The incident was upgraded at this time to a General Alarm bringing additional resources to the scene. Firefighters removed the victim from the fire apartment and she was transported to Northwestern Medicine Delnor Hospital in Geneva with non-life threatening injuries.

The sprinkler system held the fire in check in the kitchen and firefighters were able to complete extinguishment in approximately 15 minutes. There was a considerable amount of smoke throughout the second floor and firefighters remained on the scene until approximately 12:15 evacuating smoke, assisting the occupants of the remaining second floor units back to their apartments and conducting the fire investigation. Some of the occupants of the building had been evacuated to the lobby and some were sheltered in place as firefighters were able to rapidly extinguish the fire. The fire was contained to the kitchen of the apartment of origin and there were no other injuries to the occupants or to firefighters.

The cause of the fire is attributed to combustible materials being left on a stove top and is considered accidental. Fire loss is estimated at $50,000. The St. Charles Fire Department was assisted by the Geneva, Batavia, and Elburn Fire Departments at the scene. The North Aurora Fire Department changed quarters to assist with any additional incidents while St. Charles units were operating at the fire.

thanks Dan