About 50,000 people in Orange County have been told to evacuate the danger zone around the tank.

Authorities in Orange County say they’re unable to control the valves on a tank that contains methyl methacrylate, a chemical used in the manufacture of plexiglass.

Officials fear a failing chemical tank holding flammable chemicals is going to spill or explode

Southern California officials have expanded evacuations in several Orange County cities due to concerns over a leaking toxic chemical tank that they say is "actively in crisis."

An official said there's no active leak, but evacuations orders are to prepare for either a spill or an explosion from a failing chemical tank.

Authorities in Southern California on Friday were racing to figure out how to prevent the explosion of a storage tank that has been leaking a hazardous chemical used to make…

'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.

Firefighters were able to reduce the tank’s temperature, buying crews more time to stabilise the situation.

Authorities in southern California ordered the evacuation of 40,000 people on Friday after a huge storage tank began leaking a hazardous chemical used to make plastic parts,…

...employees saw that the tank was bulging, a sign it was still “actively in crisis... It can crack and leak, or it can blow up.”

Temperature rising in chemical tank at risk of exploding in California

Efforts are on to stabilize a damaged chemical tank at a facility in Southern California where tens of thousands of people have been ordered out of their homes.

Newsom said the state is 'mobilizing every resource available' after more than 40,000 residents were ordered to evacuate Orange County.

Authorities are bracing for the possibility that a damaged chemical tank at a facility in Southern California could leak or explode.

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 the city of Garden…

Authorities are bracing for the possibility that a damaged chemical tank at a facility in Southern California could leak or explode

The tank contains 26,000 litres of a flammable liquid used to make plastics, with firefighters warning the situation was serious.

Firefighters warned on Saturday that a tank of toxic chemicals in California is heating up, adding to fears of a catastrophic explosion that has already forced tens of thousands…

Thousands are under evacuation orders in California as officials work to cool off an overheating chemical tank at risk of exploding.

Orange County Fire Authority Capt. Wayhowe Huang said officials will be continuing to evaluate the tank Sunday after emergency crews spotted the potential crack overnight. As of…

Firefighters are racing to prevent a 7,000-gallon tank of methyl methacrylate from exploding in Orange County.