No official update was made Tuesday morning on the status of the ailing 94-year-old, who was admitted June 8 to the hospital for a recurring lung infection. Court documents say he is breathing with the help of a respirator.
Well-wishers from around the world continue to stop outside his Johannesburg home and the Pretoria hospital where he is being treated.
Mandela spent 27 years in prison during white rule and was released in 1990. He led the shift from apartheid to democracy and became South Africa's first democratically elected president in 1994.