South Africa: Mandela Still 'Critical, but Stable'

A wellwisher places a picture outside the hospital where ailing former South African President Nelson Mandela is being treated in Pretoria, July 11, 2013.

South Africa says Nelson Mandela continues to respond to treatment, but remains in "critical but stable" condition.

A statement from the presidency says President Jacob Zuma visited Mandela in the hospital Thursday morning. It was his second visit with the ailing anti-apartheid icon in less than 24 hours.

Mandela, who was South Africa's first black president, has spent 33 days in a Pretoria hospital since being rushed there for a recurring lung infection.