nelson mandela*The office of South African president Jacob Zuma confirmed on Tuesday that Nelson Mandela is being treated for a lung infection.

Mandela, the 94-year-old former South African president was hospitalized on Saturday and is responding to treatment, said presidential spokesman Mac Maharaj.

On Monday, Mandela’s wife, Graça Machel, said in a television appearance that seeing her husband suffer with age is “something which pains you.”

“This spirit and this sparkle, you see somehow it’s fading,” she added.

Mandela was also hospitalized in February for abdominal pain.