Five people were injured Wednesday when a gravel truck rear-ended cars and careened off a median on a busy San Gabriel Valley street.
The driver might have suffered a medical emergency when the truck was traveling east on Valley Boulevard at midday, according to police. Callers reported the out-of-control truck and at least one driver captured the collisions on camera.
The truck struck at least five vehicles, some in the center lanes and others in a left turn lane. The truck came to a stop at Valley and San Gabriel boulevards, where the driver was found "semiconscious" on a nearby bus bench, police told the Pasadena Star News.
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Two other people were hospitalized and two were treated at the scene, according to police. Details about the hospitalized victims' conditions were not available, but none were considered life-threatening.