Nelson Mandela remains in hospital, condition "unchanged," South African president says

UPDATE: Former President Nelson Mandela has died at 95

Updated at 12:50 p.m. Eastern

JOHANNESBURG -- Nelson Mandela was in serious but stable condition in a Pretoria hospital for the third day Monday with a recurring lung infection, and a foundation led by retired archbishop Desmond Tutu described the 94-year-old anti-apartheid hero as an "extraordinary gift" to South Africa.

As family members visited South Africa's first black president in the hospital, the government announced - in only the second communication on Mandela since he was hospitalized on Saturday - that his condition was "unchanged."

Speaking Monday to CBS News correspondent Debora