MARTINEZ -- Two workers suffered minor injuries Wednesday after an acid spill at the Tesoro Golden Eagle Refinery, according to a company spokeswoman.

The workers, who have not been identified, were airlifted to UC Davis Medical Center but have since been treated and released, said spokeswoman Tina Barbee.

According to Contra Costa Fire Protection District spokeswoman Lisa Martinez, the workers suffered burns after being exposed to a sulfuric acid spill.

The spill happened just after 2:30 a.m. in the refinery located at 150 Solano Way, Martinez added.

Barbee said all requisite agencies were notified of the spill, including the Contra Costa County Health Department, law enforcement, the Contra Costa County Fire Department and the San Francisco Bay Area Quality Management District.

The production unit where the spill happened was shut down as part of the refinery's protocol response to a spill. The unit remained closed Wednesday.

The cause of the spill remains under investigation.

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