At 7:32 p.m. a Ford Explorer left the roadway, rolling upside-down and striking a tree in a ravine off the shoulder near the Del Paso Boulevard offramp. Two men and a woman inside the car died.
It is not known what led up to the fatal crash, although officials are saying this may have been a case of reckless driving and excessive speed.
Traffic backed up along the highway caused another crash at the site. No injuries were reported from that crash.
Stay with FOX40 News and FOX40.com for more as this story develops.