Two-alarm fire in Mattapan three decker displaces 18

Inside 742 River St. Photo by BFD.

A two-alarm fire at 742 River St. on Monday sent one firefighter to the hospital with a cut and brought the American Red Cross in to help find temporary housing for 18 residents.

The fire, reported around 7:30 p.m., did an estimated $250,000 in damage according to the Boston Fire Department, which says the cause remains under investigation.

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