The CHP said at least six vehicles were involved in the traffic collision that occurred in the highway's lanes near the West A Street off-ramp around 1 a.m.
Shortly before 2 a.m., the lanes in the affected portion of I-880 were blocked and a special traffic alert was issued. At about 3:25 a.m., all lanes were cleared and reopened, the CHP said.
There were no further details about the casualties immediately available.
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