No one was injured in a fire at Wintonbury Place, a Bloomfield condominium complex, Thursday morning, according to officials.
Crews from the Blue Hills Fire Department were alerted about heavy smoke in the basement, as well as first and second floors, at 5:34 a.m.
When firefighters arrived, residents of the affected units were out, but the crews had to evacuate the adjoining apartments.
Mutual aid was called in and the fire was under control in around 20 minutes, officials said.
No one was injured and the fire marshal is investigating the cause of the fire.
Route 178 in Bloomfield was closed near Blue Hills Avenue and School Street, but has reopened.