A two-alarm fire started a five-story apartment building in the Worcester Square area of the South End on Thursday morning, according to the Boston Fire Department.
The Boston Fire Department received a call at 4:30 a.m. for a fire in a second floor apartment at 34 Worcester Sq. The fire quickly spread through the walls to the third, fourth and fifth floors.
No one was injured in the blaze, but the building was deemed inhabitable, displacing all its residents. An MBTA bus provided shelter for the residents in 8 degree weather, said the fire department.
Firefighters were able to put out the fire by 6 a.m. Damage to the building was estimated to be $400,000.
Fire investigators are still working on determining the cause of the fire.