South Africa's ruling party has called for an investigation into emails which appear to show allegedly corrupt links between President Jacob Zuma's family and wealthy businessmen.

The African National Congress (ANC) said the allegations questioned the credibility of the government and such matters could not be allowed to fester.

Mr Zuma recently survived calls for his resignation by some senior ANC members.

The allegations have been dismissed as a fabrication by Mr Zuma's lawyers.

The Gupta family of businessmen has said the leaks were "politically inspired".

One of the revelations of alleged links disclosed in the emails is that the Guptas helped the president's son, Duduzane Zuma, buy a $1.3m (£1m) apartment in Dubai.

In addition, the emails reportedly indicated that President Zuma was hoping to take up residency in the United Arab Emirates. A claim that was denied.