Nelson Mandela on his 94th birthday, July 2012
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Nelson Mandela ambulance broke down on way to hospital

22 June 2013 Last updated at 09:39 BST

The emergency ambulance carrying Nelson Mandela to hospital two weeks ago broke down, the South African presidential spokesman says.

He confirmed that the vehicle had engine trouble and that the former president was transferred to another ambulance in freezing temperatures.

But he said there was no threat to Mr Mandela as he was surrounded by intensive care nurses the whole time.

Mike Wooldridge reports from Pretoria.