US President Barack Obama has arrived in Tanzania for the final leg of his three country tour of the African continent.
US President Barack Obama and his family will travel to Tanzania today on the last stop of their African trip.
Mr Obama will visit the Presidential State House for an official greeting by President Jakaya Kikwete before the two leaders hold a joint press conference.
The rest of the day will involve meetings with business leaders and an Official Dinner in the State House .
President Obama and his family toured Robben Island today where the anti-apartheid leader Nelson Mandela was imprisoned for 18 years. He said they were "deeply humbled" by the visit.
From Cape Town our International Editor Bill Neely sent this report:
President Barack Obama has visited the cell on Robben Island where former South African president Nelson Mandela spent 18 years of his 27-year imprisonment.
The visit comes 15 years after Bill Clinton visited the cell with Nelson Mandela himself.
At Nelson Mandela's former prison, Barack Obama wrote how "deeply humbled" he was "to stand where men of such courage faced down injustice."
"The world is grateful for the heroes of Robben Island who remind us that no shackles or cells can match the strength of the human spirit."
President Obama wrote his comments in the visitors' book in the prison courtyard where he saw where Mandela worked and hid his draft of his book A Long Walk to Freedom.
President Obama will be shown around Robben Island by former prisoner Ahmed Kathrada who spent 25 years in jail with Nelson Mandela, his close friend
President Obama and First Lady Michelle Obama have arrived in Cape Town, South Africa ahead of their visit to the island prison where anti-apartheid leader Nelson Mandela was held for 18 years.
President Obama will be taking his family on a tour of the South African island prison where anti-apartheid leader Nelson Mandela spent 18 years today.
Mr Obama's visit to Robben Island comes as Mr Mandela remains in hospital for a third week in a critical condition. Mr Obama was near the Pretoria hospital yesterday but did not see him and instead met privately with Mr Mandela's relatives.
Mr Obama visited Robben Island when he was a senator but this time bringing his family.
Protestors have gathered at the University of Johannesburg Soweto Campus to protest against Barack Obama's visit to South Africa.
One protestor said: "We are victims of American foreign policy".