Interstate 580 has reopened in both directions at Eden Canyon Road following police activity, the California Highway Patrol said Saturday afternoon.
BART service was also stopped between Castro Valley and Dublin/Pleasanton due to police activity, the agency said.
CHP Dublin Office tweeted just before 4:30 p.m. that all lanes were reopened.
Vehicles traveling westbound on I-580 were diverted to Foothill/San Ramon Road, and eastbound vehicles are being diverted off at Eden Canyon Road, the CHP said.
Traffic on eastbound I-580 was backed up about five miles.
No other details were released at this time.
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Source: NBC Bay Area