March 12 A partly-built high-rise tower in San
Francisco whose upper floors collapsed in a major fire on
Tuesday was in danger of collapsing further, and a nearby
apartment building remained evacuated, a fire official said on
A five-alarm blaze that may have been caused by a welding
mishap broke out late on Tuesday at the MB360 apartment complex
under construction in the Mission Bay district, said San
Francisco Fire Department spokeswoman Mindy Talmadge.
The tower that burned in the two-building, partly built
complex had previously stood eight or nine stories tall and was
reduced to four stories in the fire, Talmadge said.
"The good thing is that it collapsed in on itself" instead
of toward the street, she said.
But 30 apartments in a building across the street had to be
evacuated, after heat from the fire blew out that structure's
windows and smoke set off its sprinkler system, she said.
Those residents were still not allowed to return home on
Wednesday morning, she said. Authorities have set up a perimeter
around the burned high-rise tower because of the risk of further
collapse, and the structure is a total loss, she said.
About 150 firefighters were deployed against the flames, and
hot spots still remained at the site on Wednesday morning.
When construction began last year on the MB360 project,
which was to contain 360 residential units in all, the estimated
development cost was pegged at $227 million, the San Francisco
(Reporting by Alex Dobuzinskis; Editing by Cynthia Johnston and