Zimbabwe's parliament began an impeachment process against President Robert Mugabe on Tuesday that looks set to bring his domination of a country he has ruled since independence nearly four decades ago to an ignominious end.
In the last week, the 93-year old has clung on in the face of an army takeover that shattered his authority and expulsion from his own ruling ZANU-PF party, which also told him to leave power.
Thousands of people have joined mass protests against him and calls to resign have come from many sides, including on Tuesday from the ruling party's favourite to succeed him, Emmerson Mnangagwa.
Parliament Speaker Jacob Mudenda said he received a motion to impeach and lawmakers would adjourn to a hotel to start the proceedings later on Tuesday. Thousands or people demonstrated outside parliament urging his resignation.
Since the crisis began, Mugabe has been mainly confined to his lavish "Blue Roof" residence in the capital.
Mugabe led Zimbabwe's liberation war and is hailed as one of post-colonial Africa's founding fathers and a staunch supporter of the drive to free neighbouring South Africa from apartheid in 1994.
But many say he has damaged Zimbabwe's economy, democracy and judiciary by staying in power for too long and has used violence to crush perceived political opponents. The country faces a foreign exchange payments crisis and roaring inflation.
South African President Jacob Zuma and his Angolan counterpart, Joao Lourenco, will travel on Wednesday to Zimbabwe in a fresh sign of diplomatic pressure, South Africa's state broadcaster said.
Mugabe held his weekly cabinet meeting on Tuesday but only five ministers and the attorney general turned up. 17 others opted to attend a meeting to plan the impeachment.
"The people of Zimbabwe have spoken with one voice and it is my appeal to President Mugabe that he should take heed of this clarion call ... to resign so that the country can move forward and preserve his legacy," Mnangagwa said in a statement.
The origin of Mugabe's sudden downfall lies in rivalry between members of Zimbabwe's ruling elite over who will succeed him, rather than popular protests against his rule.
The army seized power because Mugabe sacked Mnangagwa as vice president this month to smooth a path to the presidency for his wife Grace, who is unpopular with many Zimbabweans because of her perceived lavish lifestyle.
