South African retired archbishop Desmond Tutu has returned for hospital treatment, a week after he left a Cape Town hospital following an intensive antibiotics course for an infection.

A South African foundation named after Tutu and his wife Leah said Tuesday that the Nobel Peace Prize laureate was readmitted to the hospital after expressing renewed discomfort.

A foundation statement quotes Tutu's daughter, Mpho, as saying the hospitalization is not related to her father's treatment for cancer. Tutu has had prostate cancer for many years.

Mpho Tutu says her 83-year-old father will stay in the hospital at least until the weekend while his medical team "brings the situation under control."