US First Lady Michelle Obama paid a visit to Nelson Mandela on Tuesday on the first day of her visit to Africa, the Nelson Mandela Foundation and the White House said.
Obama, accompanied by her mother and two daughters, visited the 92-year-old former president and anti-apartheid leader, at his home in Johannesburg's Houghton suburb. The Foundation described it as a courtesy call.
She earlier visited the foundation offices, viewing a display of archival items including Mandela's prison desk calendars and notebooks.
The foundation quoted Obama as saying after viewing the display: "You are doing very important work."
The US first lady arrived in South Africa late on Monday and earlier met Nompumelelo Zuma, one of President Jacob Zuma's wives, in the capital Pretoria.