Zenani Dlamini, one of Mr Mandela's daughters, was among those visiting the 94-year-old anti-apartheid leader today, his eighth day in a Pretoria hospital.
President Jacob Zuma said on Thursday that Mr Mandela was continuing to improve but remains in a serious condition.
Mr Mandela spent 27 years in prison during white racist rule. He was freed in 1990 and became South Africa's first black president in elections in 1994.
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