According to Delton Fire Department, firefighters found the Kalahari Resort condo full of smoke when they arrived around 6 p.m. on Sunday. Everyone had gotten out safely.
Fire officials say automatic sprinklers were able to put the fire out completely. Firefighters used fans to remove smoke and helped clean up the water.
A teenager left the room while cooking on the stove and forgot to turn the burner off, according to investigators.
Someone else inside the condo woke up to flames in the kitchen and saw the sprinklers turn on right away. Officials describe it as a volatile grease fire.
The condos had to be evacuated for about 45 minutes but the Kalahari is still open for business.
In a Facebook post Sunday night, fire officials say this incident is an example of the importance of functioning sprinkler systems.