CHICAGO -- A massive fire overnight engulfed three structures in the Back of the Yards neighborhood.
The fire started around 2:30 a.m. Monday at a vacant building in the 5300 block of South Wood. The fire caused the roof to collapse.
Firefighters say the reason the fire spread so quickly was they had a hard time tapping into the fire hydrants.
Only one of the three homes was occupied with a family of three adults, two kids -- ages 14 and 3-years-old -- and a dog.
"We have smoke detectors, my aunt saw the smoke and started smelling it so she was the one who woke everyone up to get them out," said John Gelacio, the nephew of the homes owner.
The family is currently displaced and being assisted by the Red Cross.
No one was injured.
The family told WGN the house next door has been abandoned for a couple of years, but they've seen people there.
They've even reported it to the city.
"For the past two years we see people go in and out we find drugs and needles and we have kids and we weren't letting the kids play outside or nothing because of that," said Gelacio.
The owner of the brick building showed up after he saw the report about the fire on WGN Monday morning.
He says he's been trying to rehab his place for the past 8 months.
The cause of the fire is under investigation.