California building explosion

A suspected natural gas explosion at a Los Angeles welding shop collapsed part of the building, killing one person and injuring another.

Members of the Los Angeles Fire Department urban search and rescue team survey damage after a suspected natural gas explosion at a welding shop collapsed part of the building and hurled two workers into the street, killing one and leaving the other in critical condition, Friday, July 30, 2010, in Los Angeles. (AP Photo/Gus Ruelas)

Members of the Los Angeles Fire Department urban search and rescue team survey damage after a suspected natural gas explosion at a welding shop collapsed part of the building and hurled two workers into the street, killing one and leaving the other in critical condition, Friday, July 30, 2010, in Los Angeles. (AP Photo/Gus Ruelas)

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