NEW : This means the product will ship as received by the manufacturer, sealed, with all advertised components, and with the manufacturer warranty. The bus had left the city of Arequipa about seven hours earlier . Injuries range from severe head and back injuries to minor scrapes . The tour bus plunged into a ravine in a mountainous region near Cuzco .
NEW : Driver fatigue , poor road conditions may have been factors . The bus had left the city of Arequipa about seven hours earlier . Injuries range from severe head and back injuries to minor scrapes . The tour bus plunged into a ravine in a mountainous region near Cuzco .