Overview

• Flames erupted around 11 p.m. Sunday on the second floor of a three-story Somerville Housing Authority building on Powder House Boulevard.
• Firefighters and police rescued two people from the third floor with an aerial ladder and discovered an unconscious resident in a second-floor bathroom.
• A resident and a deputy fire chief positioned a discarded mattress below a window to cushion a woman’s jump and prevent more serious injuries.
• All injured individuals have been treated—one person remains hospitalized in serious condition with burns and smoke inhalation and one firefighter sustained minor injuries.
• The fire-damaged section housing nine apartments has been sealed off, leaving tenants displaced as housing officials arrange temporary accommodations and investigators seek the cause.