Tens of thousands of residents have been evacuated and Gov. Gavin Newsom has declared an emergency as officials try to thwart an explosion at the facility in Orange County.

A damaged chemical tank in Southern California has a crack, potentially lowering the risk of a cataclysmic explosion, though an evacuation order remains in effect for some 50,000 area residents with ...

Crews continue monitoring a potentially explosive chemical incident at a Garden Grove aerospace facility that has forced roughly 50,000 residents from their homes and prompted a state of emergency, ...