A chemical emergency took a significant turn for the worse on Friday, with officials saying the tank would fail or explode.

A leaking chemical tank is going to fail or explode in an “unprecedented” event that saw officials order thousands of Orange County residents to evacuate parts of six cities until it happens, ...

Evacuation orders were reissued Friday for thousands of residents and schools were closed in Garden Grove due to continued concerns about a toxic chemical leaking from a large storage tank at an ...