Crews responded to the fire on Maple Street in Watertown just after 3 p.m. on Thursday, May 11, Watertown Fire said on Facebook.
Upon arrival, crews went straight to work to contain the blaze which "already had a good hold on the multi-family home," Watertown Fire said.
Watertown Police were telling residents to avoid Galen Street and that traffic would be impacted as crews work to contain the blaze. The area was reopened about three hours later.
No other information was released.
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