Investigating blaze: Welding accident explored as spark

A five-alarm fire that barreled through an apartment building construction site sending up black smoke that could be seen for miles around the San Francisco Bay smoldered into Wednesday morning as authorities worked determine what sparked the 

A fast-moving fire at a San Francisco construction site Tuesday afternoon forced nearby buildings to be evacuated and sent a plume of smoke into the air that could be seen across the Bay Area. The five-alarm fire began at around 5 p.m. local time and 

(03-12) 09:52 PDT SAN FRANCISCO — Hundreds of Mission Bay apartment dwellers chased from their homes by a huge fire at a building under construction are fortunate to have homes to return to, San Francisco Mayor Ed Lee said Wednesday as 

A five-alarm fire that barreled through an apartment building construction site sending up black smoke that could be seen for miles around the San Francisco Bay smoldered into Wednesday morning as authorities worked 

San Francisco Deputy Fire Chief Mark Gonzales said the building had partially collapsed on itself, but that there was concern about the scaffolding on the outside coming down as well. Some residents in surrounding buildings were still under evacuation