Zimbabwe President Robert Mugabe swore in two vice presidents on Monday.

Mugabe made this move which a government official said would endanger power-sharing talks when former South African President Thabo Mbeki's visit on Monday to mediate forming a cabinet, according to reports of news agencies.

Mbeki arrives in Harare on Monday to try to break the deadlock in talks over Cabinet seats. The official Herald newspaper on Saturday published a list of ministries to be controlled by Mugabe' s party, including all the key ones.

Zimbabwe's opposition leader Morgan Tsvangirai has threatened to pull out of a national unity government if President Mugabe's party controls all the key ministries, local media reported on Monday.

Tsvangirai told his supporters at Zimbabwe Grounds a rally on Sunday that his Movement for Democratic Change party would rather pull out of the power-sharing accord than accept a bad deal.

Tsvangirai said he hopes South African mediator Mbeki will pressure Mugabe to respect the agreement to share power signed in September.

(Xinhua News Agency October 13, 2008)