The two people killed in the crash of a commercial tour bus in northwestern Arizona have been identified as Chinese tourists.
The small tour bus with a driver and 11 passengers drifted off an Arizona highway on Sunday and rolled several times near the community of Meadview on the southeastern side of the Lake Mead National Recreation Area.
Authorities say the bus was headed from Las Vegas to the Grand Canyon's western rim.
The Mohave County Sheriff's Office says a 46-year-old man and a 44-year-old woman died at the scene.
They say the driver and a tour guide _ both from California _ escaped injury. Two passengers were still in critical condition Monday at hospitals in Kingman and Las Vegas, with a third in serious condition. The others were treated and released.