'This thing is going to fail. We don't know when,' Orange County Fire Authority Division Chief Craig Covey warned during a tense emergency briefing Friday.

About 40,000 people were under evacuation orders and schools shut down Friday in Southern California after a storage tank continued to leak a hazardous chemical that officials…

Southern California officials have expanded an evacuation zone in several Orange County cities over a toxic chemical tank that they say is "actively in crisis."