By Associated Press - Sunday, August 20, 2017

ANTIOCH, Calif. (AP) - The California Highway Patrol says a medical emergency caused a motorist to speed down a highway off-ramp and crash into a vacant lot east of San Francisco.

Officials say two people flown to hospitals by helicopters are expected to survive following the crash Saturday in Antioch. It wasn’t immediately known how many people total were in the car.

The CHP says a sedan hit another vehicle on eastbound State Route 4 before careening down the ramp. Investigators say due to the ongoing medical event, the driver was unable to control or stop the car.



The car went through an intersection, jumped a sidewalk, crashed through a fence and hit a utility box before coming to a stop.

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