Bolivia. File photoMEXICO CITY, Jan 30 A passenger bus plunged off a mountain road in the Bolivian department of Cochabamba, killing 11 people and injuring seven others, Correo del Sur said. occurred around 3.00, as a result of which 11 people were killed and seven were injured,» the publication says. A bus belonging to the 16 July Kami trade union fell on a mountain slope while transporting employees of the Kami mining company. According to media reports, the company's executives were among the passengers.