Obama challenges students to follow Mandela legacy

(CNN) - U.S. President Barack Obama wrapped up his visit to South Africa on Sunday with a visit to the prison cell where anti-apartheid leader Nelson Mandela was held and a call to students to help build a new Africa.

Speaking at the University of Cape Town, Obama recounted how American college campaigns against investment in apartheid-era South Africa inspired him to get involved in a public cause for the first time. The school was the site of a famous speech by Sen. Robert F. Kennedy at the height of apartheid in 1966, and Obama said the leadership of figures like Kennedy, the now-ailing Mandela and Indian independence leader Mahatma Gandhi - who began his career as a lawyer in South Africa - "stand as a challenge to your generation."