Idaho State Police say a pickup truck that collided with a tour van near Yellowstone National Park last week, killing seven people, crossed the center line and hit the van.

The Yellowstone tour van crash that killed seven people in Idaho was caused by a pickup truck that crossed the center line, police said Tuesday. A Dodge Ram pickup traveling westbound on U.S. Route 20 entered the oncoming lanes and struck a Mercedes passenger van traveling eastbound toward Yellowstone National Park on May 1,