Barack Obama has led the tributes to Nelson Mandela saying that South Africa's democracy is his 'cherished legacy.'
Rivals of Jacob Zuma looked to capitalise after the South African leader snubbed a ceremony marking the death of 34 miners by police fire.
South Africa's President Jacob Zuma has said country is not in crisis, and that the "mishap of Marikana" was a surprise to everyone.
President Zuma announces that the Union Buildings amphitheatre, where Nelson Mandela was inaugurated in 1994, will now be called the 'Nelson Mandela Amphitheatre'.
He said this is a "fitting tribute to a man who transformed the Union Buildings from a symbol of racism and repression to one of peace, unity democracy and progress".
President Zuma jokes that "many leaders, some of whom are present here, have experienced his sharp tongue".
President Jacob Zuma is describing the moment the world first saw a "tall, imposing figure walking out into a world he had left behind 27 years before".
He says South Africans were, at that time, a "downtrodden people" and that they "needed a leader like Madiba".
Zuma refers to Mandela repeatedly as a "freedom fighter".
Daybreak correspondent Richard Gaisford reports that President Zuma is being booed by the crowd.
Boos drowning out the cheers & applause in our part of the Stadium as Zuma takes stage. He's determined to win them over. Electric start.
South African President Jacob Zuma is to give the keynote address next.
Ceremony organisers cut in with a musical interlude to drown out the boos from the crowd.
South African president Jacob Zuma received a mixed reception as he arrived in the FNB stadium for Nelson Mandela's memorial.
Boos and cheers could be heard from the crowd as Zuma took his seat for the service.
South African President Jacob Zuma has arrived at the FNB stadium ahead of the memorial service for Nelson Mandela.
South African president Jacob Zuma is expected to address the nation shortly on the arrangements for Nelson Mandela's funeral.
South African President Jacob Zuma has visited Nelson Mandela at his home "where he continues to recover".
The South African presidency said in a statement, "The health of the former president remains much the same as it was when President Zuma last visited him, which is stable but critical while Madiba continues to respond to treatment".
Zuma used the visit to present Mandela with the Lifetime Award for Global Peace from the Mahathir Global Peace Foundation, which he received on Mandela's behalf in Malaysia.