PHOTOS:Obama Tours Robben Island

President Obama toured Robben Island, the jail Nelson Mandela was kept in for 18 years. He said he and his family are ''deeply humbled'' to visit the prison once inhabited by Mandela. He signed the visitors book, spent some time in the cell once inhabited by Mandela and visited the quarry where prisoners were required to labour. Robben Island which was once a prison house were resistance leaders were once kept is now a museum. More pictures after the cut.

Nelson Mandela on Life Support

Anti-apartheid icon Nelson Mandela was on life support in a Pretoria hospital late Wednesday, said an official who had been briefed in detail on his condition.

Considered the founding father of South Africa's democracy, Mandela, 94, has been hospitalized since June 8 for a recurring lung infection. 

South Africans Worry About Mandela and His Legacy

South Africans reacted with concern Sunday when they learned that Nelson Mandela's condition had worsened to critical, and while some said they hope the former president and national hero recovers, they also said they are tired of the circus surrounding his illness.

"He's old, he's lived a great life, they should just let him go," said Ronelle Du Toit, 27, branch administrator at a property company in Johannesburg. "Stop anticipating and asking for prayers to keep him alive. He's 94 – how many people live to 94?"

Nelson Mandela's Health Deteriorates

Nelson Mandela was in critical condition Sunday after a deterioration in his health, and doctors "are doing everything possible'' for him, South Africa's government said.

The office of President Jacob Zuma said that on Sunday evening the president had visited Mandela, the former president of the country who was imprisoned for nearly three decades as he battled the country's apartheid system of racial separatism.