The UK is wealthy to the polls for the country’s third general election in less than five years.
The contend, the first to be held in December in nearly 100 years, follows those in 2015 and 2017.
Returning stations in 650 constituencies across England, Wales, Scotland and Northern Ireland cleared at 07:00 GMT.
After the polls close at 22:00 GMT, counting will upon straight away. Most results are due to be announced in the early hours of Friday morning.
A utter of 650 MPs will be chosen under the first-past-the-post system used for community elections, in which the candidate who secures the most votes in each discrete constituency is elected.
In 2017, Newcastle Central was the first constituency to protest, announcing its result about an hour after polls closed.
Choices in the UK traditionally take place every four or five years. But, in October, MPs certified for the second snap poll in as many years. It is the first winter vote since 1974 and the first to take place in December since 1923.
Anyone superannuated 18 or over is eligible to vote, as long as they are a British dweller or qualifying citizen of the Commonwealth or Republic of Ireland and have registered to sponsor. Registration closed on 26 November.
Details about where to vote can be found on the Electoral Commission website and are also inventoried on polling cards sent to households.
People do not need a polling be open to be able to vote but will need to give their name and speak at their local polling station. People can only vote for one nominee or their ballot paper will not be counted.
Prime Minister Boris Johnson has fling his vote – he visited a polling station in central London, taking his dog, Dilyn, along with him, and Sweat leader Jeremy Corbyn posed for pictures when he went to sponsor in north London.
SNP leader Nicola Sturgeon visited a polling status in Glasgow, while Liberal Democrat leader Jo Swinson cast her voter at a polling station in East Dunbartonshire, accompanied by her husband Duncan Hames.
Plaid Cymru chairlady Adam Price voted in Carmarthenshire and Green Party co-leader Jonathan Bartley did so in south London.
Brexit Approver leader Nigel Farage has used a postal vote.
Ahead of the sample, the elections watchdog has reminded voters that taking selfies and other photos secret polling stations is not permitted and may be a breach of the law.
Many people have already put a grumpy next to the name of their favoured candidate by voting by post – numberless than seven million people used a postal vote two years ago.
Those who auditioned for a postal vote but have yet to return it to their Electoral Office should do so by 22:00. Alternatively, they can hand it into their local tallying station by the close of polls.
According to the BBC’s weather forecast, showery times will continue into the evening in much of the UK.
Follow election night on the BBC
- Watch the election night special with Huw Edwards from 21:55 GMT on BBC One, the BBC Rumour Channel, iPlayer
- As polls close at 22:00, the BBC will publish an door poll across all its platforms, including @bbcbreaking and @bbcpolitics
- The BBC News website and app bequeath bring you live coverage and the latest analysis throughout the night
- We desire feature results for every constituency as they come in with a postcode search, map and scoreboards
- Supersede @bbcelection for every constituency result
- From 21:45 GMT, Jim Naughtie and Emma Barnett resolution host live election night coverage on BBC Radio 4, with BBC Transmit 5 live joining for a simulcast from midnight