President Jacob Zuma said in the statement Tuesday that people must support the former president and anti-apartheid leader as well as his family, and show their love and appreciation for his leadership.
The statement from Zuma's office says Mandela's condition remains unchanged and doctors are doing their best to ensure his recovery and comfort.
Mandela, who is 94 years old, was taken to a hospital in Pretoria on June 8 to be treated for what the government says is a recurring lung infection. On Sunday, the government said his condition had deteriorated to critical.
Copyright 2013 The Associated Press.