A massive South African platinum mine elevator plunged out of control, killing 11 and injuring 75 workers. The accident occurred at the Rustenburg mine, northwest of Johannesburg, as over 80 employees were leaving a shaft at the end of their shift. The lift's rapid descent was stopped by the conveyance counterweight becoming trapped by the jack catches, safety systems designed to prevent lifts and underground trains from rolling back in case of an accident. Impala Platinum CEO Nico Muller expressed his deep sadness for the loss of colleagues and their colleagues. All operations at the mine were suspended on Tuesday as an investigation into the accident continued. South Africa is the world's leading producer of platinum and has the world's deepest mines.