Four South African blacks were killed in...

Four South African blacks were killed in racial clashes. Police shot to death a black youth hurling rocks at them near East London, and in the same area, a rail policeman killed a black man firebombing his home. Outside Port Elizabeth, officers killed a black rioter, and near Durban, the body of a black man who had apparently been stabbed to death was found. In Soweto, black students were prevented by police from attempting to burn alive a teacher whom they accused of reporting class boycotts to the authorities. Meanwhile, long-imprisoned African National Congress leader Nelson Mandela was visited by his wife, Winnie.