The three-alarm fire broke out at the Martin Luther King Jr. School on Putnam Avenue around 2 p.m.
The early-morning blaze Sunday destroyed one building and heavily damaged two others on Allston Street.
A six-alarm fire caused extensive damage to a Cambridge apartment building, but authorities say all the residents escaped unharmed.
A 57-year-old man who died in a condo fire in Cambridge early Tuesday morning has been identified.
Three firefighters were hurt while battling a two-alarm fire in Cambridge.
A fire broke out late Thursday night at an oil company in Cambridge.