CONCORD, Calif. (KGO) -- Police are searching for a driver who ran over a motorcyclist overnight on Sunday.
Investigators say the biker was trying to pass a car near Concord Boulevard and Lodato Way around 12:30 a.m. when they collided.
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The biker was thrown off, and police say a pick-up truck hit him and did not stop.
The driver who collided with the motorcycle is cooperating with police.