JOHANNESBURG – South African anti-apartheid leader Nelson Mandela has recovered from his recent lung infection and a surgical procedure to remove gallstones, according to an announcement Sunday by President Jacob Zuma.

Doctors say that Mandela, 94, has made "steady progress and that clinically, he continues to improve," according to a statement issued by Zuma's office. Mandela was hospitalized for nearly three weeks in December before going home on Dec. 26.

Zuma's statement said Mandela "continues to receive high care" at his home in the Houghton suburb of Johannesburg and that "his daily routine is being gradually re-established."