US President Barack Obama, UK Prime Minister David Cameron and Cuban President Raul Castro were among the dozens of world leaders to attend the official memorial service for the late Nelson Mandela on Tuesday.
Tens of thousands of mourners gathered at the FNB Stadium in Johannesburg to celebrate the life of the former South African president, who died at his home on Dec. 5. He was 95.
A state funeral for the anti-apartheid leader will be held on Sunday.
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