Peruvian national police killed three protesters and injured at least 15 others yesterday in a confrontation with residents of Cotabambas who were demonstrating against the Chinese mining project Las Bambas. Residents claim changes in the original project will harm the environment and that the affected communities were not consulted. President Ollanta Humala has declared a state of emergency in the area and is sending in the armed forces. Rael Mora reports from Lima, teleSUR