Overview

• The fire was reported just after 4:40 a.m. at 53 Mobile Ave., with smoke and flames visible at the front and rear.
• Firefighters entered the home, removed two men in their 50s, and both were pronounced dead at the scene.
• Crews brought the blaze under control in about 30 minutes without extension to nearby properties.
• State Fire Marshal Jon M. Davine said investigators found no working smoke alarms in the residence.
• Chelmsford fire and police, State Police fire investigators, and the Middlesex DA’s office are investigating, with the fire preliminarily not considered suspicious while the medical examiner determines cause and manner and identities remain withheld.