PHOTOS: Firefighters are at the scene of a 2-alarm fire in Boston's Dorchester neighborhood on Tuesday morning. The fire was reported around 9:15 a.m. on the second floor of a 3-story occupied building at 26 Crescent Avenue. Heavy flames on the second and third stories were knocked down shortly after 9:30 p.m. Officials said all residents were safely evacuated from the building, and firefighters remain at the scene overhauling the building. The cause of the fire has not yet been determined.