PLEASANTON, Calif. (KGO) -- The California Highway Patrol was investigating a crash in Pleasanton that killed a man early Saturday morning.
The crash happened around 3 a.m. on the northbound lanes of I-680 near Stoneridge Drive.
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Officers say the driver lost control of the vehicle before hitting the center divider, and being ejected from the car.
A driver on the other side of the freeway stopped to help, but another car hit that driver who was not hurt.
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It's unclear if speed or alcohol were involved in the first crash.
The far left lane was closed while officers investigate.