A preliminary investigation found that the crash happened due to a backup on the highway from a separate crash.
State troopers traveled to Rattalee Lake Road in Springfield Township where a backup on the highway had created a second incident after a large box truck traveling slowly with its hazards on collided with a passenger vehicle stopped on the road.
The driver told police she noticed the truck had its hazard lights on but did not stop. A short time later, the driver of the large box truck rear-ended the car. Neither the driver of the small car nor the driver in the large truck was injured.
However, a smaller box truck behind the two crashed into the big box truck.
The driver of the smaller box truck was pronounced dead at the scene.
Police have not identified the victim.
All lanes along the highway reopened late Friday morning.