Description:Indigenous protesters clash with police in the Bolivian capital of La Paz. Tribe members, angered by a proposed highway that would cut through their territory, hurl everything from sand to rocks at officers. Riot police use tear gas and water cannons to beat back the demonstrators, who have occupied La Paz for more than a week. They trekked into the capital from more than 600 kilometres away - a journey that took two months.(1:15)