SAN FRANCISCO, Calif. (KRON) — A multi-vehicle collision blocked several lanes on the Bay Bridge Wednesday evening, CHP reports.

Traffic was at an absolute stand still heading from the East Bay into San Francisco. Three westbound lanes on I-80 were blocked due to a crash at the Treasure Island onramp.

According to the San Francisco Fire Department, the crash involved a tractor trailer and several other cars.

No injuries have been reported.

Video from Citizen shows police responding to the scene.

Motorists were advised to expect delays.

Check back for updates as this is a developing story.

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