The rider was injured in the accident and was transported to an area hospital for treatment.

Contra Costa, CA. – Authorities are investigating a motorcycle accident that left at least one person injured on Thursday afternoon in Concord.
According to a report by the California Highway Patrol, the accident happened around 12:37 p.m. on Highway 4 near Port Chicago Highway.
A motorcycle reportedly crashed in unclear circumstances.
The rider was injured in the accident and was transported to an area hospital for treatment.
More details about the accident were not released.
CHP is investigating the cause of the accident.
