Highway 1 was fully reopened to traffic east of 232nd Street shortly after 9 p.m. on Thursday, hours after it was closed for a serious crash.
An air ambulance and three ground ambulances were called to the scene of the two vehicle collision.
PHOTOS: Serious crash snarls Highway 1 traffic for hours
The number and severity of injuries remains uknown.
Photos from the scene show two cars, both with severe front-end damage. One of the cars was also badly burned.
How the two vehicles could have collided head-on is unclear.
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A single eastbound lane was opened around 9 p.m.
The crash snarled traffic for more than two hours, with a long line of cars backed up to almost 200th Street.
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