Emergency crews are responding to a collision involving three vehicles on northbound Interstate Highway 280 in San Francisco this morning, according to a fire dispatcher.
The three vehicles, two of which were overturned, were reported at about 6:40 a.m. on northbound I-280, between Ocean and Geneva avenues, according to the California Highway Patrol.
A Sig-alert was issued at 7:04 a.m. and two lanes of traffic are blocked this morning, according to the CHP.
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