After weeks of peaceful protests, demonstrators, outnumbering police, have targeted buildings and set cars on fire in southeast Peru, where the government is allowing a Canadian firm to open a silver mine. <br /><br />The large group opposed to the plan, mostly Aymara indigenous peoples who live in the Andes mountain range, say the mine will contaminate groundwater. <br /><br />Al Jazeera's Craig Mauro reports from Puno, Peru.
