Discuss as:

Mandela has 'restful day' of recovery

Barbara Kinney / AFP - Getty Images

Former South African President Nelson Mandela is pictured during a visit by former US president on July 17, 2012 at his home in Qunu, Eastern Cape, on the eve of his 94th birthday.

Nelson Mandela condition has improved, the South African government confirmed on Sunday after the 94-year-old human-rights icon and former president received treatment for pneumonia.

“Nelson Mandela had a restful day,” the presidency of South Africa said in a statement. “His condition has improved further.”

Mandela continues to receive treatment after he spending four days at the hospital. The South African government does not want to reveal in which hospital Mandela is receiving treatments.

NBC's Keir Simmons reports from South Africa and has the latest regarding the health of Nelson Mandela.

“We thank all people at home and around the world, who continue to keep ‘Mandiba’ (Mandela) and his family in their thoughts and to show their love and support in various ways,” said president Jacob Zuma, referring to the apartheid-era hero by his clan name. “We also thank foreign governments for their message of support.”

Last December, Mandela spent 18 days at the hospital as he was being treated for lung infection and gallstones.