Firefighters in Southern Illinois are working to learn what caused a house fire.
Firefighters in Zeigler say they were called to 310 Walnut Street Sunday night.
That was when the home owner returned from a shopping trip, to extreme heat and smoke.
The smoke was so thick that crews had to use a thermal imaging camera to find and extinguish the fire.
No one was hurt, and firefighters did save the family's cat.