The party which has ruled South Africa since the dismantling of apartheid is about to choose a new leader.

It's a crucial moment for the ANC, which has been tainted by growing scandals around the current president, Jacob Zuma.

CNN's David Mackenzie is in Johannesburg.

"A lot of people are asking that the party take a new direction away from these allegations of corruption. This meeting, which could last for several days will be a true test."