The daughter of the leader of the African anti-racist movement has died suspiciously.

Iran PressAfrica: Zindzi Mandela, the youngest daughter of South Africa's first black president Nelson Mandela has died aged 59, local media reported Monday.

She was ambassador to Denmark at the time of her death.

"The 59-year-old daughter of former president Nelson Mandela and struggle stalwart Winnie Madikizela-Mandela, passed away at a Johannesburg hospital in the early hours of this morning," said public broadcaster SABC.

The cause of her death was not immediately revealed.

Reuters also reported that the Nelson Mandela Foundation has not yet responded to the agency's request for comment on the cause of Mandela's daughter's death.

Zindzi, 59, who also served as South Africa's ambassador to Denmark, was best known for reading a historic statement by Nelson Mandela rejecting the offer to oust then-racist South African President Peik Buta from the Ruben Island prison in the Indian Ocean.


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