One of the questions over the crisis in Zimbabwe is: How long will President Robert Mugabe's impeachment take?

Journalist Geoffrey York give a ball-park figure:

Zambian President Edgar Lungu has sent former President Kenneth Kaunda to convince Zimbabwe's president to step down, reports Reuters news agency.

They quote a senior government source.

It is unclear if he has already left for Zimbabwe and when he will arrive in the country.

Image source, AFP

Image source, Getty Images

The leader of Zimbabwe's main opposition party has said that an inclusive government should be formed to see the country through the political crisis, the Reuters news agency reports.

Morgan Tsvangirai, who leads the MDC party, also said that people from different sectors should be involved in planning for the country's future.

He added that next year's election should be supervised by the international community.

Mr Tsvangirai, a long-time political rival of Mr Mugabe, added that the veteran leader's refusal to resign had "dampened people's spirits".

Image source, Getty Images

Robert Mugabe's deputy Emmerson Mnangagwa "was never officially fired", Open Parly blog reports, external War Veterans Association chairperson Christopher Mutsvangwa as saying.

Mr Mutsvangwa was giving a press conference earlier today in the capital Harare.

"Mnangagwa was never fired officially, as the secretary for administration Ignatius Chombo didn’t write him a letter advising of his dismissal", Mutsvangwa is quoted as saying.

This claim is unverified. If true, it is interesting because it was Mr Mnangagwa's sacking that sparked off the current crisis in the country.

Two weeks ago Mr Mugabe sacked Mr Mnangagwa as his deputy.

Army commanders saw it as an attempt to position his wife Grace as next president.

So the army intervened.

Zanu-PF later named Mr Mnangagwa as their new leader and candidate for the 2018 general elections.

A portion of the video showing President Robert Mugabe giving his much awaited TV address yesterday has attracted a lot of attention.

It appears to show top military officers passing along a collection of papers, before one them drops them under his chair.

This appears to have happened just before Mr Mugabe delivered his speech.

Watch the video here:

This section of the video has been of interest after Mr Mugabe failed to announce his resignation.

The head of the war veterans group Chris Mutsvangwa seemed to allude to this narrative by saying earlier today that Mr Mugabe "appeared to swap the agreed speech".

Other people have however suggested that there was nothing sinister going on and that the papers could have been copies of the speech Mr Mugabe read.

People have been reacting to a Facebook post by the youngest son of President Robert Mugabe criticising the push to remove his father from office.

Chatunga Mugabe, who is based in South Africa, says that the governing party Zanu-PF "is nothing without President Mugabe".

"You can't fire a revolutionary leader! Zanu-PF is nothing without President Mugabe‚" he said.

Here's the full post:

Reactions to the post have mostly been negative with one user, Mandla Gama, saying "its over young man... learn to accept it".

Image source, Getty Images

The deadline has now passed for Robert Mugabe to resign as president of Zimbabwe.

Here's what will happen next, if his party Zanu-PF follows up on their promise.

It says it would start proceedings for impeachment.

The National Assembly and the Senate can begin proceedings to remove the president if both pass simple majority votes against him.

This can either be on grounds of "serious misconduct", "violation" of the constitution or "failure to obey, uphold or defend" it, or "incapacity".

Once the votes are passed, the two chambers must then appoint a joint committee to investigate removing the president.

If the committee recommends impeachment, the president can then be removed if both houses back it with two-thirds majorities.

That's according to section 97 of the constitution.

The vast majority of elected Zanu-PF representatives, like the opposition, are now in favour of removing Mugabe, reports AFP News agency.

But the process could be slow.

AFP adds that impeachment would result in Vice-President Phelekezela Mphoko being head of state.

The 10:00 GMT deadline has now passed for Robert Mugabe to resign as president of Zimbabwe, without a sign of a resignation.

Zimbabwean lawyer Priccillar Vengesai and Harare resident Lydia Gumbie have spoken to the BBC's Newsday's programme about their anxiety as the political crisis unfold.

They say that they don't mind waiting a few more hours for him to resign in accordance with the country's constitution.

Listen to them here:

CNN reports, external an unnamed source has told them Zimbabwe's President Robert Mugabe has agreed to terms set for his resignation.

We have not been able to verify this claim.

They add that their unnamed source has knowledge of ongoing talks.

The source reportedly says Mr Mugabe and his wife will be given full immunity and protection for their private properties.

It's half an hour until the deadline for Robert Mugabe to resign.

Here's a reminder of what that deadline means:

• The deadline was set by his own party Zanu-PF.
• The party says it will back impeachment proceedings if he does not resign by 10:10 GMT today.
• Impeachment proceedings could be launched on Tuesday in parliament.
• This would require a two-thirds majority in both chambers.

The crisis began two weeks ago when Mr Mugabe sacked his deputy Emmerson Mnangagwa.

Army commanders saw it as an attempt to position his wife Grace as next president.

Today Programme
BBC Radio 4

The British Africa minister Rory Stewart predicts that Zimbabwe's successor will be "reaching out" to Britain and to others "because he will want legitimacy and he will also want support to get Zimbabwe off the ground".

Listen to the interview with the BBC's Today programme:

Students at University of Zimbabwe are calling for the First Lady Grace Mugabe's PhD to be revoked.

A Twitter user says that the students are also planning to boycott their exams if President Robert Mugabe does not resign:

Mrs Mugabe controversially earned a PhD in sociology in just two months in 2014 even though she never filed her thesis.

Nevertheless her doctorate title was used on campaign material as she prepared to take over the leadership of the Zanu-PF women's wing.

Read:Grace Mugabe: Who is Zimbabwe's first lady?

Zimbabwean opposition MP James Maridadi has told the BBC's Newsday programme that Zimbabweans must be patient and wait for due process to be followed.

Mr Maridadi was reacting to the failure of President Robert Mugabe to announce his resignation during last night's TV address as had been anticipated.

He added: "we waited 37 years, we can wait another 48 hours":

Listen to his comment below:

The leader of Zimbabwe's war veterans' group Chris Mutsvangwa has said that they will not relent on their push to see President Robert Mugabe step down.

He added that, '"no-one goes home until Mugabe is gone".

Journalists have been tweeting snippets from his speech in Zimbabwe' capital Harare:

Today Programme
BBC Radio 4

An MP from the governing Zanu-PF has said "it's unfair" to call Emmerson Mnangagwa a dictator.

It has been an open secret in Zimbabwe for many years that Mr Mnangagwa wanted to succeed Robert Mugabe as president.

But his past has also been criticised.

MP Terence Mukune was speaking to the BBC's Today programme:

Mr Mnangagwa was the spy chief during the 1980s civil war in which thousands of civilians were killed.

He has however denied any role in the massacres, blaming the army.

Mr Mnangagwa's sacking two weeks ago as the vice-president prompted the army to take the unprecedented move to take control of the country.

Read: Emmerson Mnangagwa: The 'crocodile' who snapped back

The leader of the war veterans says they will seek a court order to compel President Robert Mugabe to resign, according to tweeters at a press conference:

He added that Mr Mugabe was "dragging his feet but he is good as gone."

Journalist Brezh Malaba reports that the leader of the war veteran group thinks President Robert Mugabe appeared to change his mind seconds before refusing to resign:

He is tweeting from Zimbabwe's war veterans' press conference which is being held right now in reaction to Mr Mugabe's refusal to resign last night.

A faction of the group have been critical of Mr Mugabe and has been pushing for him to resign since the military took over control of the country.

The group's leader Chris Mutsvangwa told Reuters that they would lead public protests in the streets of the capital, Harare, to push for Mr Mugabe's resignation.

We are restarting the live page to give you the latest news from Zimbabwe where President Robert Mugabe has been given until noon (1000 GMT) today to step down or face impeachment.

The governing Zanu-PF party warned that it would institute impeachment proceedings after the 93-year-old leader defied expectations he would resign.

Image source, AFP

We're ending our live coverage of reaction to President Mugabe's speech. You can keep up-to-date with the latest news on BBCNews.com.

This is how things stand so far:

• In an address to the nation, the 93-year-old surprised many by not resigning in the wake of a military takeover and a mass protest yesterday against his rule
• BBC Africa editor Fergal Keane says sources close to the talks said the president was going to resign, but changed his mind
• The man who earlier today was sacked as Zanu-PF leader said he would stay on to preside over the ruling party's congress in December
• That may well be the setting for the deputy he sacked, Emmerson Mnangagwa, to take over as state president
• Impeachment proceedings may go ahead as Zanu-PF told Mr Mugabe to resign by 10:00 GMT on Monday.

And here is some reading to catch up on:

• Zimbabweans were shocked by the news - see their reaction on social media
• Five things you should know about Zimbabwe
• Find out the country's next likely leader - 'the crocodile' who snapped back
• The takeover was triggered by the presidential ambitions of Mr Mugabe's wife - do you know which other political dynasties are strong in Africa?
• And how will President Mugabe be remembered?

Join bbc.com/africalive for more updates on Monday from 07:30 GMT.