A chemical gas leak at an LG Polymers plant in southern India on Thursday killed at least nine people, and emergency services rushed more than 300 to hospital and evacuated hundreds more from nearby areas, a police official in the state of Andhra Pradesh state said.The commissioner of the Visakhapatnam city corporation said styrene leaked from the plant during the early hours of the morning, when families in the surrounding villages were asleep.“Hundreds of people have inhaled it and either…