Sioux City Fire and Rescue's Mark Aesoph says at 2:46 a.m. Friday morning, fire crews were called to 2501 Jennings Street.
Upon arrival, firefighters reported smoke was visible from the home.
Corey and Genell Reinert, the home's occupants, had been alerted by their smoke alarm, left the home, and had dialed 911 to report the fire.
The fire was on the front porch of the home and it had spread to the crawl space and basement.
Fire crews put it out quickly and there is minor fire and smoke damage.
Aesoph says the cause of the fire was an improperly discarded cigarette, which had been put in a potted plant and ignited materials, spreading to the home.
No one was injured and he reminds residents to have working smoke alarms.
"Chris we love you and miss you mom and dad," read Donald Mulder, or Ireton, Iowa.
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