Officials say they're still investigating the cause of the fire on Cherry Street.
MOUNT HOLLY, New Jersey (WPVI) -- Three firefighters have been released from the hospital after they were hurt fighting a fire in Mount Holly, New Jersey on Sunday afternoon.
Officials say they're still investigating the cause of the fire on Cherry Street, but so far they don't think anything suspicious is to blame.
A neighbor's doorbell camera showed what the blaze looked like before firefighters arrived Sunday.
"We came home and basically the whole back of the house was completely on fire," said Sabrina Carnuccio.
She lives across the street, but there were concerns about how fast the fire was spreading.
"Our other neighbor knows we have a cat and so she's banging on the door, like 'Are you guys ok? There's something going on! Get out of the house!'" she said.
The four-alarm fire damaged three homes in the 100 block of Cherry Street.
Neighbors say they heard loud booms as the fire erupted from the corner home at Cherry and Union streets.
That family was not home at the time.
They are still looking for their pet cat.
"At first it was just flames, then it was a couple explosions, everything was on fire," said neighbor Tanya Lebron.
After the fire was out, fire marshals and other investigators dig through the ashes behind the homes to look for a cause.
According to police, investigators are looking at some aerosol cans and construction-related materials at the back of the house.
Initially, responders believed children may have been trapped in one of the homes, making the response even more urgent.
"Both the firefighters, the police officers, the EMTs here did an amazing job with the heat. They worked extremely hard to make sure the children were out of the house and tried to stop the fire from advancing to any additional houses," said Chief Craig Farnsworth of the Westampton Twp. Fire Department.