Zimbabwe's ruling party has sacked President Robert Mugabe as its leader. Officials say, Zanu-PF has instead appointed ex-Vice-President Emmerson Mnangagwa as President. Emmerson Mnangagwa had been fired by Mr Mugabe two weeks ago. <br/><br/>The sacking of Mr Mnangagwa had prompted an extraordinary chain of events as the military intervened to block Mr Mugabe, 93, from installing his wife, Grace, in his place. The first lady has been expelled from the party altogether. Mr Mugabe is set to meet military leaders today. Tens of thousands of Zimbabweans attended street protests yesterday, demonstrating against the Mugabes. <br/><br/>BBC correspondent Andrew Harding, who is at the Zanu-PF meeting, said cheering erupted as the decision was announced. One senior official later told him it is the dawn of a new era. The move has yet to be formalised, but it increases further the pressure on Mr Mugabe that has been building over the past few days. There are now moves to impeach him as President if he does not resign.