A US tour bus carrying fans home from a soccer game has crashed into a pick-up truck on the hard shoulder of a central Washington motorway, triggering a three-vehicle accident that killed two people and injured up to 15 others, authorities said.
The bus landed on its side after hitting the truck, Lt Scott Martin of the Washington State Patrol said. A passenger vehicle veered to avoid the accident and rolled over, winding up in the central reservation.
"The bus lost control and struck the pick-up on the shoulder," Lt Martin said. "It hit the truck and spun around," landing on top of the truck's rear end.
The crash occurred on I-90 near the town of Cle Elum, about 80 miles east of Seattle.
A man and a woman on the bus were killed, and a man who was standing by the truck was seriously injured and airlifted to a Seattle hospital, he said.
As many as 14 others in the three vehicles were believed to have minor injuries but Martin said he did not have an exact count because many were taken to hospitals in private vehicles.
Paul Jimenez told Seattle's King TV that he drove up to the scene just moments after the crash.
"I saw people crawling out from underneath the bus, or being dragged out, I saw people coming out from the top," he said.
"People were hugging and crying," Mr Jimenez said. "It's kind of shocking, I'm still a little bit in shock right now."
Two of those injured were also in the pick-up, two were in the passenger vehicle and the others were aboard the bus, Lt Martin said.