Nelson Mandela is now in a 'critical condition', according to the South African president.
President Jacob Zuma and ANC Deputy President Cyril Ramaphosa visited Mr Mandela in hospital this evening.
They were briefed by Mr Mandela's medical team and told that the 94-year-old's condition had 'become critical over the past 24 hours', but denied media reports that he had suffered a heart attack.
South African authorities have announced that former South African president Nelson Mandela is in a 'critical condition'. He has been in hospital for two weeks for a recurring lung infection
President Zuma said in a statement: 'The doctors are doing everything possible to get his condition to improve and are ensuring that Madiba is well-looked after and is comfortable. He is in good hands.
'The doctors also dismissed the media reports that Madiba suffered cardiac arrest. There is no truth at all in that report.'
Mandela, who became South Africa's first black president after the end of apartheid in 1994, was hospitalized on June 8 for what the government said was a recurring lung infection. Previous statements have indicated that Mr Mandela’s health is improving.
Yesterday it was claimed that Mandela is unresponsive and his immediate family is now discussing whether to withdraw treatment.
According to a new source, Mr Mandela’s liver and kidney functions are down to 50 per cent and he has not opened his eyes for days.