FD stated that they were dispatched to an apartment fire and upon arrival they found a sprinkler controlled kitchen fire. They said prior to their arrival a Willowfork FD chief had arrived to active fire and water flow alarms, entered the apartment and found the fire extinguished by the automatic sprinkler system. There was minor water damage throughout the apartment but minimal fire damage. The occupant who rents the apartment and lives there with her daughter said that she was home heating a pot of cooking oil in preparation to make some fried chicken. The pot was unattended at times while heating. At some point she stepped out of the apartment. When she re-entered the apartment she saw the black smoke coming from the kitchen. Upon investigation she found the pot of oil had ignited. She placed a kitchen towel over the fire, located her daughter, left the apartment and called 911.