60s man dies in Chelmsford Street house fire in Lowell, MA; firefighters extinguish blaze, suspect smoking materials, investigation ongoing.

A house fire on Chelmsford Street in Lowell, Massachusetts, resulted in the death of a man in his 60s. Authorities suspect smoking materials ignited the blaze, which was reported around 10:30 p.m. One resident escaped with non-life-threatening injuries. Firefighters extinguished the flames in about 10 minutes but noted that smoke alarms were not heard. The fire is under investigation by local and state officials.