Firefighters say the fire was caused by an electrical problem on the first floor or basement of the building. They do not suspect foul play.

Three units inside the three-story home were damaged by smoke and fire, said Deputy Fire Chief Phil Lemire. All residents of the building were forced to sleep somewhere else last night, however, as power was shut off to the building.

When firefighters first arrived on the scene, a live power line fell off the side of the building and landed on a fire truck. Fire officials were forced to use a backup truck until National Grid workers secured the live wire.

Companies on this call here

1st Alarm E4, E11, E1, E10 (rit), R1, L1, C3

2nd Alarm E2, E3, L3, C2