SAfm — The National Union of Mineworkers (NUM) says its saddened by the death of two mine workers who were trapped underground at Kloof mine, on Gauteng's West Rand due to a fall of the ground. It's unclear at this stage what the exact cause of the incident was, but Sibanye Gold believes it may be due to seismic activity. Elvis Preslin spoke to NUM's Health and Safety Chairperson, Peter Bailey