JOHANNESBURG, Rabi'II 14, 1437, January 24, 2016, SPA -- Impala Platinum said on Sunday that four workers were killed in an underground fire at its Rustenburg mine in South Africa, Reuters reported. The fire began on Friday at Impala's Rustenburg 14 shaft and all but the four employees were evacuated by rescue teams. The company said those who died had been overcome by fumes while trying to find their way to safety. South Africa's mines are the deepest and among the most dangerous in the world, but safety records in the industry have improved in the last few years. --SPA 16:57 LOCAL TIME 13:57 GMT www.spa.gov.sa/w