Mugabe, Zimbabwe’s main opposition leader and a leader of a smaller opposition faction will sign a power-sharing deal Monday that has resulted from weeks of negotiations mediated by South African President Thabo Mbeki.

Mbeki and Morgan Tsvangirai, the main opposition leader, announced a deal late Thursday. They gave no details, saying the agreement would be made public Monday. Members of the opposition first gave the broad outlines Friday, and media controlled by Mugabe confirmed their version Sunday.

Even the time of Monday’s ceremony had not been released by late Sunday, but South African officials said Mbeki will attend with his Foreign Affairs minister, Nkosazana Dlamini-Zuma, and Sydney Mufamadi, a Cabinet minister who has led the mediation effort.

"The South African government has noted that while this is cause for celebrations, we remain all too aware that this historic milestone constitutes but the end of the beginning," South Africa’s government said in a statement Sunday.

According to Zimbabwean state radio Sunday and the opposition members earlier, the agreement to be signed Monday calls for a Cabinet with 31 members; 16 from the opposition and 15 from Mugabe’s party.