The cause of the crash is not yet clear, but California Highway Patrol spokesman Mario Lopez was quoted by the Associated Press as saying that the bus driver reported brake problems as he descended a road leading from the Big Bear ski resort area.

BBC: California bus crash kills eight and injures dozens

Using state-of-the-art driver eye-tracking and 3-D hand-gesture recognition, HCD-14 Genesis is able to recognize driver commands free from the distractions associated with manual controls.

ENGADGET: Hyundai unveils HCD-14 Genesis concept: suicide doors, gesture and eye controls

But he referred to one as a person who "served as a personal bodyguard and driver for Osama Bin Laden, " the Associated Press reports.

BBC: NEWS | Americas | Guantanamo trials to resume soon

The driver of the truck has not been charged, the Associated Press reports.

BBC: Richard Swanson