Media playback is unsupported on your device

Ahmed Kathrada on the overwhelming effect of illness on Mandela

7 December 2013 Last updated at 13:31 GMT

Ahmed Kathrada was Nelson Mandela's friend of 67 years, and his companion in prison on Robben island.

However, the two didn't always see eye to eye. In the early 1950s, they clashed over the issue of cooperation between the various organisation opposed to apartheid.

Nelson Mandela, at the time, believed the ANC should focus its efforts exclusively on the interests of black South Africans. Ahmed Kathrada disagreed.

Speaking to the BBC's Gabriel Gatehouse, Mr Kathrada spoke of their friendship, and also the shock he felt upon seeing the deterioration of Mr Mandela when he was in hospital.

BBC © 2014 The BBC is not responsible for the content of external sites. Read more.

This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.