Nelson Mandela still 'critical but stable' in hospital

Former South African president Nelson Mandela is still in a "critical but stable" condition in hospital in Pretoria, the presidency's office said.

President Jacob Zuma has thanked the public for their "ongoing support and prayers".

Nelson Mandela pictured during a visit to London in August 2007. Credit: Lewis Whyld/PA Wire

Zuma said in a statement: "We thank the public for the dignified gatherings outside the hospital. Many groupings and individuals have gathered in dignity, respecting the privacy of Madiba, other patients, their families or the hospital personnel.

"The prayer services around the country are also appreciated.

"We thank the international community as well for ongoing messages of support to Madiba and his family".

Mandela has been receiving treatment at the hospital since 8 June.