[miningmx.com] -- HARMONY Gold, South Africa's third-largest gold producer, said on Sunday that the two mineworkers who were trapped underground at its Tshepong mine in the Free State have died as a result of the fall of ground accident that occurred on 23 April. The fall of ground accident occurred at the mine on Thursday afternoon trapping four mineworkers underground. Two of the mineworkers were brought to the surface safely and uninjured.