Former South African president Nelson Mandela has been readmitted to hospital with a recurrence of a lung infection and is in a “serious but stable” condition, the presidency said.
It marks the second hospitalisation for the ailing 94-year-old in two months.
Mr Mandela’s medical condition was “serious this time” but he was able to breathe by himself, a government spokesman said.
“Doctors have assured us he is comfortable,” presidential spokesman Mac Maharaj added.
“What I am told by doctors is that he is breathing on his own and I think that is a positive sign.
“Madiba (Mr Mandela’s clan name) is a fighter and at his age, as long as he is fighting, he will be fine.”
Mr Maharaj says he does not know how long Mr Mandela will need to stay in hospital.
Meanwhile, Mr Mandela’s wife Graca Machel has reportedly cancelled an appearance in London to fly home to be with her ailing husband.
On April 16, he was released from hospital after being treated for pneumonia during a 10-day stay.