The charred remains of one of the buildings in the fire that took place overnight in Waltham, Mass.
The charred remains of one of the buildings in the fire that took place overnight in Waltham, Mass.
Twitter/@Charkittie

Crews worked overnight to put out a heavy four-alarm fire that broke out at a construction site on Charles Street in Waltham.

WCVB reported that the fire started in an unoccupied building that was under construction and eventually spread to a neighboring building with people inside. Everyone made it out safely, but other buildings also had to be evacuated. The report added that several cars, including a police vehicle, were damaged.

Advertisement - Continue Reading Below

According to a report from NECN, all that remains of one of the buildings is a burnt out frame.

WBZ-TV reported that two firefighters were treated for minor injuries.