At least four are dead and several more injured following clashes between police and residents at Challhuahuacho in Peru's Apurímac region, amid protests over Las Bambas copper mine project, now nearing completion. Several hundred residents attacked the installation, and police responded with tear-gas. Authorities have mobilized army troops to the area and imposed a 30-day state of emergency. Residents in the local province of Cotabambas and neighboring Grau launched an ongoing civil strike last week to demand that the owner of project, Hong Kong-based MinMetals Resources (MMG Ltd), make changes to its environmental management plan. Protesters oppose the company's plan to process concentrates of copper and molybdenum in the town, threatening local waters. They also object to plans for processed ore to be shipped to the Pacific coast by train and truck rather than pipeline, posing greater risk of spill. The plan was recently revised by the company to allow these practices, sparking the protests. The mine is scheduled to begin production in 2016 and is exepected to produce 400,000 metric tons of copper the following year. (Channel News Asia, NYT, BNAmerica, Sept. 29; AP, Sept. 28; Diario Correo, Sept. 27)