Zimbabwe's ruling party sacks Robert Mugabe as leader

Zimbabwe's ruling party has sacked Robert Mugabe as its leader, as pressure intensifies for him to step down as president.

Zanu-PF has also given Mr Mugabe, 93, until 10:00 GMT on Monday to resign as president, or face impeachment.

He is currently addressing the nation, after meeting military leaders who have called on him to step down.

The military intervened last week, in an apparent attempt to block him from installing his wife as his successor.

The first lady, Grace Mugabe, and several other senior officials have been expelled from the party altogether.

Tens of thousands of Zimbabweans attended street protests on Saturday, demonstrating against the Mugabes.

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No details of the talks between Mr Mugabe and the military leaders have been released. However, photos posted by the state-run Herald newspaper show the two sides - who also met several days ago - shaking hands.

Mr Mugabe was said to be seeking more time to negotiate his exit after nearly four decades in power.

A number of sources close to the talks said Mr Mugabe is poised to resign, but this has yet to be confirmed.

Cheering erupted when the decision to dismiss Mr Mugabe as party leader was announced in Harare on Sunday.

One senior official later told the BBC's Andrew Harding: "It's the dawn of a new era. Mugabe can go farming."

Zanu-PF appointed ex-Vice-President Emmerson Mnangagwa, who was fired by Mr Mugabe two weeks ago, in his place.

The party's central committee also warned that impeachment proceedings would begin if Mr Mugabe did not step down as president by noon local time on Monday.

Impeaching the president would require a two-thirds majority in both houses of Zimbabwe's parliament, which is due to resume on Tuesday.

The opposition MDC-T party has tried unsuccessfully to impeach Mr Mugabe in the past, but this time the ruling party - which has an overwhelming majority in both houses - is likely to go against him.

President Mugabe's wife, Grace, had emerged as a leading candidate to succeed her husband

But Mr Mnangagwa has re-emerged as front runner after his dismissal two weeks ago

Mr Mnangagwa, who left Zimbabwe after he was sacked but has since reportedly returned, has also been nominated as the party's presidential candidate for the 2018 general elections.

Nicknamed "the crocodile" for his perceived shrewdness, Mr Mnangagwa is a former state security chief who is now widely expected to lead an interim post-Mugabe government.

His sacking prompted an extraordinary chain of events over the past week:

• Mr Mnangagwa fled the country after his dismissal as Mr Mugabe's deputy two weeks ago

• The army's chief of staff, Gen Constantino Chiwenga, warned last Monday that the military might intervene to stop purges in the party - and was roundly criticised by allies of the Mugabes

• On Wednesday, soldiers seized the headquarters of the national broadcaster

• Mr Mugabe has been mostly under house arrest for several days

• On Saturday, unprecedented mass protests further weakened Mr Mugabe's position

Speaking ahead of the party meeting, the head of the influential War Veterans Association, Chris Mutsvangwa, threatened to "bring back the crowds and they will do their business" if Mr Mugabe did not step down.

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Mr Mugabe has been leader of Zimbabwe for 37 years, having led the country since it gained independence in 1980.

He has made just one public appearance since events unfolded, speaking at a university graduation ceremony on Friday.