The Conservatives have 365 MPs, Labour 203, the SNP 48, Liberal Democrats 11 and the DUP eight
Sinn Fein have seven MPs, Plaid Cymru four, the SDLP have two; and the Green Party and Alliance Party one each
Boris Johnson's party has the largest Tory majority since 1987
He says he will repay the trust of voters and lead a "people's government"
He has been to see the Queen and speaking outside No 10 urged the UK to "unite" and "everyone to find closure and to let the healing begin"
Jeremy Corbyn says he did "everything he could" to win and will stand down as leader early next year
Jo Swinson loses her seat, stands down as Liberal Democrat leader, and urges her party to "regroup"
Nicola Sturgeon says the PM has "no right" to block another Scottish independence referendum
There will be a minor reshuffle on Monday and the Brexit bill will go before MPs next Friday
Polling stations across England, Wales, Scotland and Northern Ireland are officially open, as of 07:00 GMT.
They will close at 22:00 GMT and counting will begin straight away.
Most results are due to be announced in the early hours of Friday morning.
Image source, ReutersA clock in London's Canary Wharf financial centre strikes 07:00
A total of 3,322 candidates are standing for election in the UK's 650 parliamentary seats.
Find your constituency and the candidates who are standing here.
General election 2019: What shouldn't you do at a polling station?
Can you take a selfie inside a polling station? Can you vote whilst drunk?
The BBC has answered your top questions about the rules of election day etiquette as the polls are set open at 07:00 GMT.
You can read more of the rules for election day here.
The BBC, like other broadcasters, is limited in what it can report while the polls are open.
Under electoral law, the BBC must follow a code of practice to ensure fairness between candidates and that is particularly important on polling day.
The corporation does not report on any of the election campaigns from from 00:30 BST until polls close at 22:00 BST on TV, radio, online or on social media and other channels.
From 22:00, normal reporting of the election resumes, with rolling online BBC coverage overnight, and Election 2019 on BBC One with Huw Edwards and Laura Kuenssberg.
You can read more about how the BBC reports election day here.
Good morning and happy polling day.
We will be bringing you the latest updates as UK voters head to the polls for the third general election in less than five years.
Polling stations in 650 constituencies across England, Wales, Scotland and Northern Ireland open at 07:00 GMT.
After the polls close at 22:00 GMT, counting will begin straight away. Most results are due to be announced in the early hours of Friday morning.
You can read more about the day ahead here.