A fire at a fuel storage facility in the San Francisco Bay Area prompted a hazardous materials emergency Tuesday afternoon that led authorities to order about 12,000 people in two communities to stay inside with all windows and doors closed.
Emergency sirens blared and thick plumes of black smoke and flames filled the skyline around the NuStar Energy LP facility in Crockett, California, about 30 miles (50 kilometers) northeast of downtown San Francisco.
Video footage of the fire showed flames leading up to an explosion so strong it blew the lid of one of the tanks high into the air.
"This is a very dynamic, rapidly evolving situation," Capt. George Laing of the Contra Costa Fire Department said.
"We've got two tanks that are releasing chemicals that are still burning."
There could be manifolds, valves and pipes down there. At this point, it's still actively involved in fire so I'm sure that's the number one thing they are finding out right now."
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