Eleven people, including three children, are displaced after a fire at a multi-family home on Robbins Street Tuesday morning.
Firefighters were called to the scene around 12:30 a.m. When they arrived, the all three levels of the house were burning, officials said.
Everyone who was inside at the time made it out safely with the help of bystanders from a nearby hospital. No injuries were reported.
There is major damage to the home, which is now unlivable, and the Red Cross has responded to assist the residents.
Firefighters said the flames were so intense there was concern fire could damage neighboring homes. The did cause the siding of a neighboring home to buckle.
"We had to call extra companies because we were all-hands early on in order to get the fire contained and then extinguished," Deputy Fire Chief Stephen Ayotte said.
Officials said they do not believe there were working smoke detectors in the house.
The Waterbury fire marshal's office is investigating the cause of the fire.