Tens of thousands have evacuated as emergency crews try to secure a tank loaded with 7,000 gallons of methyl methacrylate at an aerospace plastics facility in Orange County.

Evacuation orders were issued to 40,000 Orange County residents. A fire official said a major spill or an explosion were the only expected outcomes.

Southern California officials are desperately searching for a safe resolution to a leaking toxic chemical tank at an aerospace facility.

A failing chemical tank dangerously close to exploding at an aerospace facility in Garden Grove is located less than 10 miles away from some of Orange County’s most popular attractions, including Disneyland,

The exact nature of the damage, and what contingencies are in place to deal with it, have not been made clear.

An "unprecedented" situation was taking hold in Orange County on Friday, as a chemical tank was at risk of spewing a highly toxic chemical that can cause severe respiratory distress and hospitalization,