Winnie Madikizela-Mandela, right, leaves after speaking to the press outside Nelson Mandela's home. (Dan Kitwood/Getty Images)

Winnie Madikizela-Mandela, the ex-wife of former South African President Nelson Mandela, told the press on Friday that he is showing a "great improvement" in his health compared with a few days ago, according to Yahoo News.

The anti-apartheid campaigner has been in the hospital with a lung infection since June 8. Since then his condition has varied from "critical" to "serious, but stable."

Read more at Yahoo News.