Police activity shuts down Highway 4 in Concord

CONTRA COSTA COUNTY, Calif. (KRON) — Police activity has shut down parts of Highway 4 in Concord Saturday evening, according to authorities.

Highway 4 is closed to westbound traffic at Collector Road.

Drivers are advised to use an alternate route.

No other details were immediately available.

Check back for updates as this is a developing story.

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