Labour MP Hilary Benn, the chair of the Exiting the EU Committee, says the government's plans would take to 2022 to implement, and he asks if the government will extend the transitional arrangement, which currently only goes to the end of 2020.

"No," Mrs May replies.

Image source, HoC

Image source, AFP/Getty Images

Russian foreign ministry spokeswoman Maria Zakharova has made her feelings about the former foreign secretary clear.

She said: "Remember we said that this dirty multi-part intrigue was not going to end well for Theresa May's government? Well, here you go.

"Even the British king of political eccentricity wants to get off the leaking boat.

"What did you expect? It's becoming dangerous to tell the world so many lies about 'the Kremlin's hand', 'Russia's aggression against the UK on UK territory', Novichok, World Cup 2018, etc."

David Davis said it was "a pity" that Boris Johnson had quit.

He told LBC that the Chequers plan was "central" to his own job and he would have had to have been the "champion" for it.

But Mr Davis added it wasn't central to Mr Johnson's job as foreign secretary...

The foreign secretary has quit over Theresa May's Brexit stance - he has long been a thorn in her side.

Labour MP Yvette Cooper stands now to call on the PM to put her plans in front of the Commons to get its approval.

Theresa May swerves the question, instead repeating her belief in the viability of her proposals.

Lib Dem leader Vince Cable has called for the UK to stay in the single market and customs union, which is what he believes the "majority of the house" wants.

He said now that she has lost the support of her "Brexit fundamentalists" with the exit of David Davis and Boris Johnson, he wants her to follow the "national consensus".

But Theresa May quickly ends the speculation, saying the UK will leave both the single market and customs union.

Ian Blackford now stands to issue his response to Mrs May in the Commons.

The SNP's Westminster leader starts by saying that Boris Johnson should not have been allowed to resign as foreign secretary, again calling him a "national embarrassment".

He adds it is "hard to believe" it has taken two years for the PM to put together a plan and only two days for it to start falling apart.

The government is in "chaos", he says, and Mrs May is struggling to lead her party, "never mind her government".

Mr Corbyn continues in the Commons: "Mr Speaker this mess is all of the prime minister's own making.

"For too long she has spent more time negotiating divisions in her party than putting any focus on the needs of our economy...

"The team the prime minister appointed to secure this deal for our country have jumped the sinking ship.

"Far from strong and stable there are ministers overboard and the ship is listing – all at the worst possible time."

Jeremy Corbyn is responding to Mrs May's statement in the Commons and says it is all "a mess of her own making".

He said: "For too long she has spent more time negotiating the divisions in her party than putting any focus on needs of our economy.

"She postured with red line after red line and now, as reality bites, she backslides on everyone of them."

To laughter, Labour leader Jeremy Corbyn tells MPs: "To be fair - and I want to be fair to the former Brexit secretary and the former foreign secretary - I think they would have resigned on the spot on Friday.

"But they were faced with a very long walk, no phone and due to government cuts no bus service either.

"So I think they were probably wise to hang on for a couple of days so they could get a lift home in a government car."

Image source, PA

Theresa May tells the Commons: "In the two years since the referendum we have had a spirited national debate, with robust views echoing around the cabinet table as they have on breakfast tables as they have up and down the country."

But she adds: "Over that time I have listened to every possible idea and every possible version of Brexit.

"Mr Speaker, this is the right Brexit, leaving the European Union on 29 March 2019."

Another statement from Downing Street amid the resignations:

"The Queen has been pleased to approve the appointment of Kit Malthouse MP as Minister of State for Housing.

"Chris Heaton-Harris MP becomes a Parliamentary Under Secretary of State at the Department for Exiting the European Union."