Bus passengers were Chinese nationals , officials say . The dead lay in body bags on the roadway near the overturned bus . Tour bus overturns on U.S. Route 93 , heading from Arizona to Las Vegas . Hospital says Five victims being flown to Las Vegas .
Bus passengers were Chinese nationals , officials say . The dead lay in body bags on the roadway near the overturned bus . Tour bus overturns on U.S. Route 93 , heading from Las Vegas to Arizona . Hospital says as many as 15 victims being flown to Las Vegas .