New York (CBSNewYork)-A massive explosion occurred in Brooklyn overnight, and the fire spread to nearby houses.

As CBS2’s Christina Fan reported, the video captured the moment a house explosion launched a huge fireball onto Vermont Street in Cypress Hills.

The force smashed the windows, blasted the doors, and collapsed the first floor into the basement.

"The whole wall collapsed. This lady and her daughter screamed for help. They were all injured and they were under the rock. So we had to help them," said neighbor Henry Riquelme.

Just after midnight, more than 100 firefighters responded. Not only do they have to fight the rapidly spreading flames that have ignited several nearby houses, they must also look for potential victims buried in the rubble.

"It's just a'boom!' Everything was jumping and shaking. The lights went black for 5 seconds," Mychelle Gurllon said.

The explosion is so powerful that the structural integrity of the entire block is now being questioned.

Edwin Rodriguez and his family were among 58 people evacuated before the holiday. He just finished decorating in his now condemned home.

"I grabbed my daughter and ran down the stairs. This is Christmas," he said.

Somehow everyone survived, but six people suffered only minor injuries.

The fire chief’s office has not yet determined the cause, but neighbors blamed the boiler system in the basement.

They claimed that they began to smell gas 12 hours before the explosion and called the landlord who told them not to call 911.

"He said,'Don't worry, I will take care of it. I have someone doing this now. When I took the children home from school, I called him again. It is said that he fixed it. He did not fix it. "Rodriguez said.

CBS2 called the landlord and asked him what measures he took to resolve the gas leak report, but he hung up our call.

If you suspect a gas leak in your home, go outside immediately and call 911 or your local gas utility company.