A massive blaze that started in an empty downtown nightclub early Monday quickly spread through 14 buildings, including apartments and a home for the mentally disabled.
One person was injured in the fire in Lawrence, about 30 miles north of Boston, Fire Chief Peter Takvorian said. The extent of the person's injuries was unknown.
The fire spread from the nightclub, which was being renovated, through a hair salon and the other buildings.
Officials say they rescued several people from the buildings, many of them three-story, wood-framed structures.