Eleven people are dead and another 75 have been injured in an underground accident at an Implats mining facility near Rustenburg.
Implats said there had been a "serious safety incident" with winder rope at the mine's 11 Shaft operation on Monday.
"This rope is connected to the personnel conveyance, which hoists employees up and down the shaft. The conveyance comprises three levels, each with a capacity to carry 35 personnel," the company said.