CYPRESS (CBSLA.com) — Crews worked to clean up an oil leak Thursday that appeared along a busy street in Cypress.

Around 9:30 a.m. on Wednesday, 10 to 15 gallons of petroleum oil began to seep up from the ground located on Cerritos Avenue near Valley View Street, according to the Orange County Fire Authority.

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Firefighters explained two underground pipes — belonging to Chevron and Plains All American Pipeline — are located near where the leak occurred.

Investigators are currently working to determine which pipe the oil is leaking from.

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At this time, the eastbound lanes of Cerritos Avenue from Valley View to Holder streets remain closed until further notice.

It remains unclear when officials plan to reopen the area.

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No evacuations or injuries were reported.