San Francisco firefighters have prevented a major blaze from spreading from a condominium construction site to nearby buildings.
The five-alarm fire started burning at around 5 p.m. on Tuesday in the city's Mission Bay neighborhood, a onetime industrial area that lies along the San Francisco Bay.
The fire sent an enormous plume of black smoke high into the sky and eventually caused a wall of the structure to collapse. Officials say fire-suppression systems had not yet been installed in the building, making the battle against the blaze more difficult.
Fire Chief Joanne Hayes-White tells the San Francisco Chronicle (http://bit.ly/1cSlq6y ) that the fire is the city's largest in several years.
Mission Bay is home to a University of California, San Francisco medical campus and is close to AT&T Park, the San Francisco Giants stadium.