JOHANNESBURG -- South African retired archbishop Desmond Tutu has undergone a "small investigative procedure" in a hospital to assess an infection, a foundation said Saturday.
The Nobel Peace Prize laureate will remain in the hospital in Cape Town for several more days, according to the foundation, which is named after Tutu and his wife Leah.
Tutu, 83, has been treated for prostate cancer for many years. The foundation quoted Tutu's daughter, Mpho, as saying the cancer is under control but the infection is the result of past treatment for the disease.
Desmond Tutu "underwent a small investigative procedure last night to determine the status of an infection he has battled to shake off for several weeks," the foundation said in a statement. It cited Mpho Tutu as saying doctors are satisfied with the progress of her father's antibiotic treatment.
Tutu was admitted to the hospital on July 28 after a weeklong stay there earlier in the month.
He was awarded the Nobel Peace Prize in 1984 for campaigning against apartheid.
