Police : Driver lost control of the bus , which crashed into roadside boulders . Among the dead were seven men , four women and two minors , said Jose Villarroel , another police official . Comment: Bus driver and 18 others were being treated at a hospital , the government says . Fatal bus wrecks are not rare in mountainous Bolivia .
Police : Driver lost control of the bus , which crashed into roadside boulders . Comment: Bus driver and 18 others were being treated at a hospital , the government says . Fatal bus wrecks are not rare in mountainous Bolivia .