MPs vote by 286 to 344 to reject the government’s withdrawal agreement - on the day the UK was due to leave the EU
The Commons has been debating a motion on the terms of the UK's exit
The political declaration, which sets out the future relationship, was not considered
The vote - the third time the government had been defeated over its deal - throws the UK’s plans into more confusion
Theresa May says the result will have "grave" implications and the "legal default" was that the UK would leave the EU on 12 April
Labour leader Jeremy Corbyn urges the PM to call an election
Thousands of Leave supporters gather outside Parliament to protest against Brexit delay
Business of the House motion
House of Commons
Parliament
Conservative MP Richard Harrington - who resigned as a minister earlier this week - says some have acted as though supporting the business motion amounts to "a dangerous revolution".
He says he cannot accept that any of his constituents would mind if, for one day, private business comes before business of the government.
Joanna Cherry, the justice and home affairs spokesperson for the SNP at Westminster, says resolving the current impasse over Brexit is unprecedented and very difficult.
"When Parliament takes over, Parliament backbenchers don't have the weight of publicly-funded civil servants and advisers behind them in the way that the government do - so we're very much in uncharted territory," she says.
She urges MPs - including Tory rebels - to unite on issues including having a second vote and her amendment which involves making revocation rather than no deal the default position.
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Conservative MP Ed Vaizey, a former culture minister, is asked whether Theresa May has lost control of the government.
"We know that she's tried to get her withdrawal agreement through twice. I've voted for it twice - unlike some of the Brexiteers - I've actually voted for Brexit. I'll vote for it again, and it looks like, if you read the newspapers, things might be going her way," he replies.
"But it is pretty clear the reason we're having these debates and these votes today is because the government cannot get its Brexit policy through.
"And in the absence of the government changing its mind and coming up with an alternative, Parliament has to step in."
Business of the House motion
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Image source, HoCShadow Commons leader Valerie Vaz says Labour supports the idea of indicative votes taking place today and will therefore vote in favour of the business motion.
These are "unusual circumstances" and "unprecedented times", she says.
She adds that Theresa May "has not listened" to MPs, and Tory ministers who have left government posts did so because they were "frustrated".
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Business of the House motion
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Responding on behalf of the government, Leader of the House of Commons Andrea Leadsom says the government is "disappointed" that Sir Oliver Letwin's amendment to the Brexit motion was agreed to on Monday.
"Today's motion sets an extremely concerning precedent," Ms Leadsom says, noting that the government was to provide time for considering other Brexit options aside from this amendment being passed.
"I am genuinely concerned that the decisions we are being obliged to make could result in Parliament being extremely frustrated," she says, adding: "Whatever Parliament decides must be both deliverable and negotiable."
Andrea Leadsom says the government wants to deliver on the result of the referendum, and urges MPs to support the deal.
She says the government will oppose the business of the House motion.
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The Conservative MP and leading Brexiteer Jacob Rees-Mogg has indicated he is now willing to support Mrs May's deal - if it gets the backing of Northern Ireland's Democratic Unionists.
But Christopher Montgomery, former chief of staff for the DUP, says they cannot support the deal as it stands.
"Not if it includes the backstop. We've been perfectly clear on that and so many journalists have written or said so many silly things about this, and it's all had one direction of travel.
"They can be bought off, their lives can be stuffed full of gold - and it's absolutely true.
"They can be bought off - on everything except this.
"The government has managed to land with the one policy that they cannot be bought off on - that's how bad Theresa May's non delivery of Brexit so far has been."
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The vice president of the European Parliament, Mairead McGuinness, says she hopes a conclusion can soon be reached over Brexit.
"It's very clear that Parliament wants to take control of this process," she tells the BBC.
"I'm still not sure how that will evolve or how choices can or will be made.
"But I do, I hope rather, to see some pathway that will give a sign for progress towards a conclusion of Brexit.
"So, from a European perspective we are, I suppose, like the rest of the world, looking and hoping that we will get white smoke from the House of Commons which signifies a way forward and I think that's in our best interest, both at EU level and in the United Kingdom."
The World at One
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The Labour MP for Birmingham Yardley, Jess Phillips, says that contrary to comments made this morning by one of her colleagues, Labour's position is that a referendum on the final deal should be held.
"That is now a three line whip from the Labour Party this morning, so that's pretty clear.
"It's completely contrary to what Barry Gardiner said, so I'm not entirely sure what is going on there with that communication, but that is the position.
"I mean, I would have voted for it regardless of the whip, but now I feel pleased that the Labour party is taking such a firm position."
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Business of the House motion
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Sir Oliver Letwin says the only way leaving with no-deal can be prevented is by crystallising an alternative majority and trying to carry it forward.
He adds that if MPs supported the prime minister's deal in meaningful vote three this would be "the easy route".
Sir Oliver Letwin says he "profoundly hopes" that if on Monday there is a majority view in favour of a particular position, that the government will say that it will carry that forward.
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A reminder that the Norway plan - also known as the Common Market 2.0 - involves the UK remaining in the single market by rejoining the European Free Trade Association (EFTA) and staying in the European Economic Area (EEA).
A "comprehensive customs partnership" would replace the Irish border backstop plan. It would accept continued freedom of movement but with conditions.
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Business of the House motion
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Sir Oliver Letwin says that MPs will use both lobbies for completing the indicative vote ballots.
MPs with surnames beginning A-K will use the Aye lobby. Those with surnames beginning L-Z will use the No lobby.
He said he understood the ballot papers would not be pink, but he did not know what colour they would be.
Sir Oliver Letwin says he will vote for the prime minister's deal in a potential meaningful vote 3, and if it passes there would be no further need for this process.