UPDATED, 12:20 p.m.
Boston firefighters raced to Webster and Sumner streets around 8:30 a.m. for a fire that fire officials say may have started with a short circuit at 309 Sumner and then spread to 102 Webster and 311 Sumner.
Fire officials say 20 people were displaced from 309 Sumner and 102 Webster. 311 Sumner was not as severely damaged.
Smoke could be seen from across the area. Joseph Couture photographed the fire from downtown: