SIX KILLED IN SOUTH AFRICAN GOLD MINE ACCIDENT Six black miners have been killed and two injured in a rock fall three km underground at a South African gold mine, the owners said on Sunday. <Rand Mines Properties Ltd>, one of South Africa's big six mining companies, said in a statement that the accident occurred on Saturday morning at the <East Rand Proprietary Mines Ltd> mine at Boksburg, 25 km east of Johannesburg. A company spokesman could not elaborate on the short statement.