That's all from the live page team on this hugely eventful day in Scottish politics. You can continue to keep updated on the story of the Bute House agreement being scrapped by clicking on our main story here.

The editor was Paul McLaren. The writers were Craig Hutchison, Ashleigh Keenan-Bryce, Katy Scott, Catherine Lyst and Jonathan Geddes.

The first signs of a turbulent day in Scottish politics came on a quiet and sunny Edinburgh street after 08:00 this morning as Green party co-leaders Patrick Harvie and Lorna Slater left the first minister's official residence, Bute House.

Ahead of First Minister's Questions, Humza Yousaf then announced that the "groundbreaking" Bute House agreement had been terminated with immediate effect.

Speaking in the Holyrood chamber later, Yousaf defended the achievements of the power-sharing agreement while the opposition labelled him a "lame duck first minister".

Scottish Conservative leader Douglas Ross announced his intention to lodge a vote of no confidence against the first minister, while Labour leader Anas Sarwar called for a Holyrood election.

Green party co-leaders Patrick Harvie and Lorna Slater, who started the day as Scottish government ministers, said Yousaf's decisions "can't come without consequences" and the Scottish Greens would "support a vote of no confidence in the first minister".

What is a no confidence vote?

In general terms, it is a formal expression from a decision-making body on whether officers or leaders are fit to continue in office.

The Scottish Parliament defines it as a motion that says some MSPs do not have confidence in a government minister, the first minister, or all Scottish ministers.

So in this case it is motion that would declare Yousaf unfit to hold the office of first minister.

What happens next?

A motion of no-confidence requires the support of at least 25 MSPs.

The Scottish Conservatives have 31 MSPs, so that seems guaranteed.

Members are usually given at least two sitting days notice of such a vote.

The Scottish parliamentary bureau won't meet until next Tuesday to schedule next week's business, so it looks like Thursday would be the earliest possible date.

What happens if the vote is passed?

If a majority of MSPs do not have confidence in the first minister, he would be expected to resign - although he is not obliged to do so.

In practice, it would be hard to continue in the role without the backing of parliament.

In the event Yousaf resigning as first minister, MSPs would have 28 days to elect a replacement.

If they failed to do so, it would lead to an election being called.

How do the numbers stack up?

The SNP have 63 MSPs who can presumably be counted on to support Yousaf and vote against the motion.

The Scottish Conservatives, Scottish Labour and the Scottish Lib Dems have 57 MSPs between them who will likely back it.

The Scottish Greens have also now announced their seven MSPs will back the no-confidence vote – so it all depends on the sole Alba MSP Ash Regan.

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UK Labour leader Sir Keir Starmer has said Scotland needs an election “the sooner the better”.

He spoke to BBC political editor Chris Mason about the end of the power-sharing agreement between the SNP and the Greens and said there was “despair” about the how the Scottish government was being run.

He added that Britain also needed a general election over the “chaos” at Westminster.

The Scottish Greens co-leaders Patrick Harvie and Lorna Slater explained earlier why they will support a vote of no confidence in the first minister, after he chose to end the Bute House Agreement with their party.

Harvie said talk of revenge was "an unworthy thought" but that the first minister was abandoning progressive change for the country, something he described as "a profound mistake on his part".

Slater emphatically added that "the agreement is finished".

We've just heard from the Scottish Greens co-leaders Lorna Slater and Patrick Harvie in a press conference where they confirmed they'll back a no-confidence motion against Humza Yousaf.

It's been a compelling day in Scottish politics, but if you're just joining us here's a reminder of the headlines:

• Patrick Harvie said Humza Yousaf had "burnt his bridges"
• The decision means Yousaf will struggle to win no confidence vote, which has been tabled by the Scottish Conservative leader Douglas Ross
• The vote is expected to take place next week. The announcement by the Greens leaves the outcome on a knife edge.
• This morning we learned the SNP's power-sharing deal with the Scottish Greens had been scrapped

• It follows the government's decision to scrap key climate targets and a pause on the prescription of puberty blockers for under-18s
• The SNP will now form a minority government

• In a Bute House press conference, FM Humza Yousaf confirmed he was terminating the power-sharing agreement "with immediate effect"
• While saying he was proud of the deal and that it had achieved successes, Yousaf said it had served its purpose "and it's in the SNP's best interest to pursue a different arrangement"
• The first minister insisted he's here to stay - denying he is "heading for the exit door"
• The collapse of the deal dominated FMQs, with Scottish Tory leader Douglas Ross telling the chamber Humza Yousaf should never have let the Greens anywhere near government
• The FM hit back by attacking the Tory record in government at Westminster
• Scottish Labour leader Anas Sarwar accused Yousaf of being "weak, hopeless and untrustworthy" and called for a Holyrood election
• Again Yousaf went on the attack, accusing Sarwar of flip-flopping on issues and being dictated to from London

Former SNP leader Alex Salmond tells BBC Scotland's Drivetime that Humza Yousaf "no longer rules the roost, he needs to understand that".

Salmond, who now heads the Alba party, adds: "His tactics today have been kamikaze. If Humza Yousaf was a horse I wouldn't be backing him."

Alex Salmond has said that Humza Yousaf has made Alba MSP Ash Regan the "most powerful MSP in the Scottish parliament".

Speaking to BBC News after the collapse of the SNP's power-sharing agreement with the Greens, Scotland's former first minister and the leader of the Alba Party said Yousaf had managed to annoy every opposition party in Holyrood.

Ash Regan became Alba’s sole MSP when she resigned from the SNP in October last year and joined the party led by Salmond.

"She's one of the few adults in the room," quipped the former first minister.

Regan is writing to the first minister later today to set out her concerns about the Scottish government’s priorities.

She wants to see if there are areas where her party and the SNP can work together ahead of any confidence vote.

The SNP government is in no position to guarantee that Mr Yousaf will win the confidence vote, likely to be held next Thursday.

In fact the first minister’s position looks very precarious.

If all opposition MSPs join forces against the first minister, he will lose.

Strictly speaking, that vote is not binding but politically he would more or less be obliged to resign.

Mr Yousaf could avoid that scenario if a couple of opposition MSPs abstain or one switches sides and backs him.

Now that the Greens have made clear their group will vote no confidence in him that suggests he may have to try to make a deal with Alba MSP Ash Regan.

She is writing to him to discuss possible terms for her support which are likely to include prioritising independence and women’s rights.

The SNP have 63 MSPs. Their opponents have 65. One switcher to the government could result in a tied vote in which the presiding officer (equivalent of the Commons speaker) would be expected to back no change.

That’s an arithmetical route to retaining office - one that would leave the first minister politically beholden.

It is likely the Scottish Conservatives will call the vote of no confidence in Humza Yousaf early next week and it will be held later in the week.

The Tories will need 65 of the 129 MSPs to support their motion - that is all the MSps who are not SNP.

The Tories, Labour and the Lib Dems have all indicated they will vote against the first minister.

Now the Greens have also said they will vote for the no confidence motion.

That leaves the sole Alba MSP Ash Regan as Yousaf's main hope.

The former SNP leadership candidate has said she will set out her terms in a letter to Yousaf.

Just before the Greens' press conference winds up, the party's co-leader Patrick Harvie says they had been "busting a gut" to achieve their priorities through collective support in politics.

"We don't relish drama for drama's sake," he adds.

The BBC's Scotland editor James Cook asks Patrick Harvie and Lorna Slater to confirm they would not abstain from the vote of no confidence in the first minister, but would vote against him.

Lorna Slater says: "That is correct.

"The Bute House agreement was, at its heart, a confidence and supply agreement," she goes on. "We offer our votes to the government, participate in exchange for ministerial positions and delivery of the Bute House agreement objectives.

"Those are now unlikely to be delivered in full and. therefore, the agreement is finished."

Slater's fellow co-leader Patrick Harvie says that he isn't interested in "speculative" questions about who the Greens would want as first minister if Humza Yousaf was replaced.

However he says that Yousaf's decision to end the Bute House Agreement "can't come without consequences".

He denies that voting in support of a no confidence vote is being done out of "revenge", saying it is because Yousaf has "decided to abandon the vehicle that was delivering progressive change for Scotland".

In a press conference being held in Holyrood's Garden Lobby,. Scottish Greens co-leader Lorna Slater Slater says the sudden ending of the Bute House agreement today called the delivery of Green priorities into question.

"Therefore the Scottish Green MSPs have decided that we will support a vote of no confidence in the first minister."

Prof Curtice says one of the motivations behind Humza Yousaf's decision to break up the Bute House agreement could be a hope to unite his party ahead of the upcoming general election.

"Those around Kate Forbes and Fergus Ewing (SNP MSPs who have been critical of the first minister) may perhaps be somewhat quieter of what's happened and that, in the wake of that, the Scottish public get the perception that the SNP is more united than they appear at the moment. That might help their electoral chances."

Polling expert Prof Sir John Curtice has told BBC Radio Scotland's Drivetime programme that those pursuing the no confidence motion "are playing with fire".

"The truth is, both the SNP and the opposition parties are now playing in a rather uncertain field and it won't be long before we work out who’s made the right calculation or not." he says.

"What those who are pursuing this motion need to realise is they are potentially playing with fire – not only for the SNP but for themselves.

"The Conservatives for example are not currently in a position whereby they could look forward to the prospect of an early Scottish parliamentary election with much in the way of equanimity."

Lorna Slater's fellow Greens co-leader Patrick Harvie is also having his say on the no confidence vote.

He tells BBC Scotland's Drivetime: "It's very clear that Humza Yousaf has decided to burn his bridges with the progressive pro-independence majority that was established in the Bute House agreement."

He says this will be with a "genuinely heavy heart" and he insists "I would never vote to put the Tories in power".

Image source, Getty Images

Lorna Slater's full statement says:“When we voted for Humza Yousaf’s appointment last year, it was on the basis that we would continue to work together to deliver the progressive policy programme as laid out in the Bute House agreement.

“We supported him in order to deliver rent controls, a ban on conversion therapy, a new national park, and increased action on the climate emergency. It was based on a commitment to constructive ways of working together.

“His decision today to end that agreement has without doubt called into question the delivery of that programme. It came with no reassurance that his minority government would continue with these objectives.

“And it abruptly ends the pro-independence majority government which the public voted for, and which members of both parties supported.

“Therefore Scottish Green MSPs will support a vote of no confidence against the first minister if such a motion comes before Parliament in the coming weeks."

The Scottish Greens will vote against Humza Yousaf in a vote of no confidence in him as First Minister, the party's co-leader Lorna Slater has said.

Speaking to the PA news agency, Slater said her party had "no confidence in a progressive government doing the right thing" in Scotland and would back the Tory motion to unseat Yousaf.