Summary
Boris Johnson begins his term as prime minister by assembling his team
Sajid Javid is the new chancellor, Priti Patel home secretary and Dominic Raab foreign secretary
It follows a large-scale clear out of cabinet, with Philip Hammond and Jeremy Hunt among those going
Liz Truss, Theresa Villiers, Amber Rudd, Michael Gove, Gavin Williamson and Andrea Leadsom also have roles
Mr Johnson promises the UK will leave the EU by 31 October and sets out his first policy aims in a wide-ranging speech
As Mr Johnson travelled up the Mall for his audience with the Queen, Greenpeace protesters attempted to block his route
Theresa May took her last Prime Minister's Questions and was clapped out of the Commons
Live Reporting
Harriet Agerholm
Picture: Leadership contenders arrive in the hallpublished at 12:02 British Summer Time 23 July 2019
Picture: Conservative Party chairman opens resultspublished at 12:01 British Summer Time 23 July 2019
12:01 BST 23 July 2019Tory Party Chairman Brandon Lewis opened the event to announce the new Conservative leader.
Opening words from Tory chairmanpublished at 12:00 British Summer Time 23 July 2019
12:00 BST 23 July 2019Conservative Party Chairman Brandon Lewis says he has been "hugely proud" of the election contest, which he says has been "fair and efficient".
He thanks those who have helped organise the hustings events, which he says have been "fantastic".
He also pays tribute to outgoing PM Theresa May, adding that leading the country over the last few years "was never going to be an easy task".
Familiar faces in the crowdpublished at 11:57 British Summer Time 23 July 2019
11:57 BST 23 July 2019A trio of Johnsons have taken their place in the Queen Elizabeth II Centre for the announcement, which is due shortly.
In the stalls are his sister Rachel, his father Stanley and his brother Jo, who quit as a transport minister last year before calling for the public to have a fresh say on Brexit.
Also spotted in the chamber is Gavin Williamson, who led Mr Johnson's whipping operation during the MPs' vote at the start of the leadership contest.
Results event under waypublished at 11:56 British Summer Time 23 July 2019
11:56 BST 23 July 2019BBC political editor tweets:
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End of twitter post'Tortoise and hare' style upset possiblepublished at 11:55 British Summer Time 23 July 2019
11:55 BST 23 July 2019BBC News Channel
The BBC's Assistant Political Editor Norman Smith has just said the contenders will be told just before they go on stage what the results are.
He says it is just possible that there is a "tortoise and hare" style upset, in which Jeremy Hunt could win.
He describes the scene outside the conference centre in the "Scorchio" weather as the "Plaza del Chaos".
Winning mandatespublished at 11:54 British Summer Time 23 July 2019
11:54 BST 23 July 2019Editor of the Times Red Box tweets...
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End of twitter postDUP leader awaits 'historic' announcementpublished at 11:50 British Summer Time 23 July 2019
11:50 BST 23 July 2019DUP leader tweets....
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End of twitter postThe stage is set...published at 11:47 British Summer Time 23 July 2019
11:47 BST 23 July 2019The winner of the Tory leadership contest will be named in a few minutes' time.
Milton: Resignation 'the right thing to do'published at 11:43 British Summer Time 23 July 2019
11:43 BST 23 July 2019BBC Radio 5 Live
Anne Milton has been speaking about her decision to resign as education minister, which she says she has been "thinking about for a long time".
She says she has always felt the UK's departure from the EU should be "managed".
She adds there is "nothing self-indulgent" in her decision to step down now, which she calls the "right thing to do".
Stewart: May 'dignified'published at 11:42 British Summer Time 23 July 2019
11:42 BST 23 July 2019Theresa May has finished chairing her last cabinet meeting as prime minister.
As he left No 10, International Secretary Rory Stewart said of Mrs May: "She was very, very dignified."
Tomorrow Mrs May will go to Buckingham Palace to formally stand down.
Majority of Brexiteers want a deal - Bucklandpublished at 11:33 British Summer Time 23 July 2019
11:33 BST 23 July 2019BBC News Channel
Justice minister Robert Buckland says that the Conservative party needs to "unite quickly" in order to deliver on the referendum result of 2016.
He says that the "vast majority" of "hardline Brexiteers" still actually want a deal with the European Union.
A crash out would "reflect poorly on Britain and reflect poorly on the EU as well", he says.
"We've got a few months in which to do this...the withdrawal agreement is dead."
Jeremy Hunt arrives at QEII conference centrepublished at 11:28 British Summer Time 23 July 2019
11:28 BST 23 July 2019Leadership contender Jeremy Hunt has arrived at the Queen Elizabeth Conference Centre with his wife ahead of the announcement.
Pictures: MPs arrive for announcementpublished at 11:27 British Summer Time 23 July 2019
11:27 BST 23 July 2019Boris Johnson supporters Andrea Leadsom, Gavin Williamson and Priti Patel are among the MPs to have arrived at the QE2 Conference Centre in central London.
Also seen making her way there was Dame Cheryl Gillan, who will announce the results of the leadership contest.
Rifkind: 'We have to be optimistic'published at 11:25 British Summer Time 23 July 2019
11:25 BST 23 July 2019BBC News Channel
Former cabinet member Sir Malcolm Rifkind says that "we have to be optimistic". He is supporting Jeremy Hunt.
He says he has doubts if Boris Johnson "can cope with the burden of being prime minister".
"We need leadership," but he says he is unsure if Mr Johnson can supply it.
Sir Malcolm says Mr Johnson has moderate views on everything "apart from Brexit".
Anne Milton resigns over 'grave' no-deal Brexit concernspublished at 11:22 British Summer Time 23 July 2019
11:22 BST 23 July 2019Education minister stands down
Ms Milton says in her resignation letter that she has "grave concerns" over a no-deal Brexit.
She says she had "sincerely hoped" that the UK would be able to leave the EU in March with a deal.
She adds she wants Parliament to continue to play a role in securing an agreement and she states that "we must leave the EU in a responsible manner".
Tory MP Anne Milton resigns from governmentpublished at 11:16 British Summer Time 23 July 2019
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End of twitter postA look back on previous Conservative leadership vote resultspublished at 11:12 British Summer Time 23 July 2019
11:12 BST 23 July 2019David Cameron beat his rival David Davis with 68% of the vote in 2005.
Mr Cameron secured 134,446 votes while Mr Davis received 64,398.
There was a turnout rate of 198,844 - or 78%.
In 2001, it was the first time the leader of the party was chosen by the Conservative party membership, it had previously been just up to Tory MPs.
In that contest, Iain Duncan Smith won with 61% of the vote.
Mr Duncan Smith secured 155,933 votes, while Ken Clarke got 100,864, with a turnout of 256,767 - 78%.
Pictures: Johnson's family supportpublished at 11:04 British Summer Time 23 July 2019
11:04 BST 23 July 2019Boris Johnson's family have been seen at the QE2 Conference Centre in central London ahead of the announcement of the winner of the Tory Leadership contest.
His father Stanley, sister Rachel and his brother - and fellow MP - Jo were pictured arriving to give their support.
When can we expect the result?published at 10:55 British Summer Time 23 July 2019
10:55 BST 23 July 2019At the QE2 Conference Centre in central London, this is how the morning's events will unfold.
At 11:47 BST, Dame Cheryl Gillan, from the backbench Conservative 1922 Committee, will announce the results of the leadership contest.
At 11:50am, the winner of the contest will make a speech.
Later on in the day, the winner will make his way to Conservative party headquarters to make a speech, as well as addressing Conservative MPs at a meeting of the 1922 Committee.