The demonstrations are expected to begin at 10am this morning, in Cape Town & Johannesburg.

CAPE TOWN - Some well-known South Africans are expected to join marches against President Jacob Zuma today.

The demonstrations were planned after Zuma's sudden decision to change finance ministers, which had a detrimental effect on the economy.

Protesters in Johannesburg are gathering at the Nelson Mandela Bridge, while in Cape Town the meeting point is the Company Gardens.

Unite Against Corruption, which is leading marches in Johannesburg and Cape Town today, says Zwelinzima Vavi, Barbara Hogan and Reverend Mpho Tutu have all confirmed their attendance.

Spokesperson Johan de Meyer says several Non-Governmental Organisations (NGOs) are supporting the demonstrations.

"The South African Council of Churches is on board and multi-faith groupings, it's really a very diverse group."

Section 27's Mark Heywood says, "The purpose of the gathering is to strengthen calls for the president of our country to be either removed or to step down."

Both marches start at 10am this morning.

LISTEN:_ Unite Against Corruption's Mark Gilliam chats to CapeTalk's Kienno about the #ZumaMustFall marches planned for today..._

ANC APOLOGISES TO SISULU AND HOGAN

The African National Congress (ANC) has withdrawn its accusation that Shaka Sisulu and former minister Barbara Hogan are behind marches calling on Zuma to step down, but has called on South Africans not to support the initiative.

The ANC National Working Committee did not discuss the planned marches when it met on Monday.

But the party's Jessie Duarte says the ANC obviously does not support the mass action.

March posters bear the faces of ANC stalwarts, Sisulu and Hogan, due to their criticism of the president.