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The Wankie coal mine disaster took place on 6 June 1972 when a series of underground explosions occurred at the Wankie colliery in Rhodesia (now known as Zimbabwe).With 427 fatalities, it remains the deadliest mine accident to date in the country''s history. The disaster took place at the Wankie colliery in Wankie, (now known as Hwange) in the Rhodesian province of Matabeleland