Authorities say one person died in the shooting.
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It happened around 2:40 a.m.
Officials say two cars involved in the shooting drove to different parts of Richmond before reporting the incident to police.
MORE: CHP releases photo of cars believed to be involved in deadly Oakland freeway shooting of toddler
It is still under investigation.
And on Friday evening, the CHP says there was a report of shooting on the westbound direction of the Bay Bridge near Harrison St.
It happened around 10:20 p.m.
All lanes of west bound I-80 east of the Bay Bridge toll plaza have reopened.
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