Crews in California race to cool a damaged chemical tank that could explode at any time, prompting 50,000 to evacuate. Here's the latest on the efforts. (AP Photo)

The goal is to neutralize a nearby 15,000-gallon tank and reduce its explosive potential if the smaller tank failed.

Orange County Fire Authority Capt. Wayhowe Huang said officials will be continuing to evaluate the tank on Sunday after emergency crews spotted the potential crack overnight. As of Sunday morning, he said it does not appear that any of the highly volatile chemicals in the tank have leaked.

Some 50,000 residents in the densely populated area are under evacuation orders.

Orange County fire official says a potential crack found on a pressurized chemical tank in Garden Grove might alleviated internal pressure, reducing risk of a catastrophic explosion.

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.

Officials say a 34,000-gallon chemical tank at GKN Aerospace in Garden Grove is actively in crisis, prompting urgent evacuations over explosion fears.

We are bringing people in from all over the country … trying to come up with additional options,’ a fire official said.

SPRINGTOWN, Texas — A jaw-dropping moment was caught on camera Saturday night as severe storms tore through North Texas. Intense lightning and thunder engulfed Springtown when a powerful strike hit a gas storage tank, triggering an explosion that lit up ...