A fire in the heating, ventilation and air-conditioning system on the roof of the Textron building created billowing smoke that could be seen for miles away Sunday morning.
Firefighters brought the fire under control shortly after reporting to the scene. The blaze was reported at about 10:30 AM.
The cause of the fire remains under investigation. Public safety commissioner Steve Pare said the cause is not believed to be suspicious.
Two firefighters who were part of the response of more than 50 firefighters suffered minor injuries. Pare says damage from the fire was confined to the roof of the Textron building.