THE former boyfriend of Olympic runner Rebecca Cheptegei has died after allegedly setting her on fire and injuring himself in the process.

Dickson Ndiema was named as her attacker in local media after the mum-of-two was set ablaze with petrol and died days later from organ failure.

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Ndiema sustained burns across 30 per cent of his body in the reported ambush and has now died in hospital, Nation Africa reports.

He died on Monday evening.

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