The former South African President Nelson Mandela, who was taken to hospital in Pretoria at the weekend, is being treated for a lung infection according to the government.
A statement said there had been a recurrence of a previous infection but the ex leader was responding well to treatment.
There has been widespread concern over Mandela’s condition since he was admitted to hospital. The government is seeking to reassure people.
“He is doing very very well, and that is important for all of us to, well, to keep him in our prayers, but also to be as calm as possible, and not cause a state of panic in the country, because I don’t think that is what all of us need right now,” said Nosiviwe Mapisa Nqakula, Minister for Defence and Military Veterans.
South Africa’s first black president, and symbol of the anti-apartheid struggle, celebrated his 94th birthday in July.
He was last treated in hospital in February for a stomach complaint.
The country’s Surgeon-General is expected to give an update on Mandela’s condition later on Tuesday.