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.

Seven people were killed in a fiery crash between a van and a pickup truck on an eastern Idaho highway near Yellowstone National Park, officials said.

According to the Idaho State Police, of the 14 occupants in a van that collided with a pickup truck, 12 were Chinese and one was of Italian nationality.