2 people injured in Revere apartment fire

A fire broke out Sunday evening at an apartment building in Revere, Massachusetts, sending two residents to the hospital.

Revere's fire chief told NBC10 Boston that the fire started in one unit and spread to another at 30 Park Avenue. After evacuating everyone from the building, firefighters realized an elderly woman was still inside and she had to be rescued by a crew.

"The door was not open, it actually was on fire with heavy, black smoke, so they had to force entry of the door and remove her from that room," firefighter Tyler D'Angelo said.

One person was taken to the hospital for smoke inhalation treatment, while another had different injuries that were believed to be minor in nature, the chief said.

It was not immediately clear how many residents were displaced by the blaze.

The Chelsea Fire Department assisted on scene.

There was no word on what started the fire. An investigation is ongoing.