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Veteran African National Congress (ANC) activist Denis Goldberg says the top hierarchy of the party is riddled with corruption and must be replaced. In a BBC interview, he alleged that the focus of the ANC leadership, locally and nationally on personal enrichment, was threatening freedom in South Africa.

"Corruption is a problem. I personally believe, and I will say it publicly as I do in South Africa, the members of the ANC need to renew the leadership from top to bottom.

"I'm not going to give names, because it's a problem throughout, from national, provincial and local government level," he said.

As a member of the ANC's military wing, he was convicted of armed resistance to apartheid and sentenced to four life terms in 1964.

Mr Goldberg was the only white man to be convicted among 10 people on trial for their lives alongside Nelson Mandela.

Huge steps had been made in education, health care and the development of the civil service since the end of apartheid, Mr Goldberg said.

"We have undoubtedly made huge progress, [but] we have more progress to make," he told John Pienaar in an exclusive interview on BBC Radio 5 live.

The economy is three times larger than it was when apartheid came to an end in 1994, he said.