The CHP said the collision was first reported at 5:40 a.m. just north of High Street.
At least one person was injured and officers at the scene reported oxygen tanks blocked lanes of the freeway, per the CHP's Traffic Management Center.
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The No. 1 and 2 lanes were blocked during the morning commute but have since reopened.
Stay with ABC7 News for the latest details on this developing story.
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