San Francisco (CA) firefighters responded to a fire in a three-story residential building on Masonic Avenue early Monday.
The San Francisco Chronicle reported that the fire burned three duplexes and left two people injured.
At least 100 firefighters responded to the early-morning fire that struck an Edwardian building and two adjacent dwellings. One person jumped out of a window and sustained minor injuries, while another had to be escorted out by responders.
Lieutenant Mariano Elias, a fire department spokesperson, told reporters that the original fire building was undergoing construction, and floors partially collapsed from the flames.