A family was able to escape an early morning fire near 31st and Villard on Friday.
Milwaukee Fire Department Battalion Chief Darin Peterburs said the fire started at around 5:30 a.m.
A child was able to escape the flames by crawling out of bed and through an upstairs window.
"This child that was able to crawl out of his bed and come out of the window, a year ago thorough his school, he went to the Milwaukee Fire Survive Alive House and he learned that if conditions were so that he could not get out of his house or his bedroom via the door, that the next best option would be a window," said Peterburs.
Peterburs said that skill potentially saved the child's life Friday.
Neighbor Darren Jones said he called 911.
"I just started seeing a bunch of smoke and then flames came out the roof and the little boy was sitting on the roof up there crying," said Jones. "The fire trucks showed up and every time they put it up it flamed right back up."
Peterburs said one firefighter was injured while battling the blaze. The firefighter was transported to the hospital and is expected to be OK.
The cause of the fire is under investigation.