At least 15 people were killed in a road accident on Monday in Potosi, Bolivia on the same southern road where another crash on Saturday left 37 dead and 40 injured. Firefighters and police continued on Monday morning to rescue the dead and injured hours after a collision between a vehicle and a passenger bus on the road linking the cities of Potosi and Oruro in the southwest of the country, said Potosi police commander Colonel Limbert Choque.