SAN FRANCISCO (AP) — Chevron officials say a fire at refinery in the San Francisco Bay area has been contained.

Company spokeswoman Heather Kulp said late Monday the fire was contained, but she could not say when firefighters would be able to put the fire out.

Even with the blaze contained, smoke continued to pour from the facility in Richmond. The fire started Monday evening, sending flames with thick black smoke out of at least two refinery stacks and over Richmond and San Pablo, about 10 miles northeast of San Francisco.

Kulp says officials are trying to determine what caused the fire.

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