The department sent 12 units the 5000 block of Liberty Hall Circle Tuesday night to an overnight fire that caused extensive damage.
The explosion happened at a business on Miller Circle, the area of South Main Street near the James Madison University Transportation Department building.
The fire broke out on the top floor of a building at 18th and Dearborn Streets around 12:30 a.m.
Crews from Montville's four volunteer fire companies as well as other career personnel and mutual-aid firefighters from partner departments were called to Connecticut Scrap just after 1 a.m. Friday.
Nearly 150 boats were destroyed Wednesday afternoon in a fire at the Woodland Marina in the Orchard Farm area of St. Charles, Missouri.
Six people were hurt, including a four-year-old boy and two firefighters, when a fire broke out on the upper floor of an apartment building just after 1:15 a.m. Monday in East New York, Brooklyn.
A large fire at the West Liberty Foods plant in Tremonton, Utah, Friday morning force nearby residents to evacuate.
More than a dozen HFD units arrived at approximately 6:15 a.m. in the 1000 block of Terminal Street near the corner of Terminal and Avenue J in the Greater East End.