'Brexit' vote on United Kingdom's future in EU

Britain's Prime Minister David Cameron puts his arm around his wife Samantha after speaking outside 10 Downing Street on June 24, 2016. Cameron says he will resign by the time of party conference in the fall after Britain voted to leave the European Union after a bitterly divisive referendum campaign, according to tallies of official results Friday.

Supporters of the 'Stronger In' Campaign react as results of the EU referendum are announced at a results party at the Royal Festival Hall in London on June 23, 2016.

Supporters of the 'Stronger In' Campaign react as results of the EU referendum are announced at a results party at the Royal Festival Hall in London early in the morning of June 24, 2016.

Leader of the United Kingdom Independence Party, or UKIP, Nigel Farage reacts outside the Leave EU referendum party at Millbank Tower in central London on June 24, 2016.

A pedestian looks at an electronic stock indicator in the window of a securities company in Tokyo on June 24, 2016. Tokyo stocks went into a hair-raising dive on Brexit fears, plunging more than eight percent on during the afternoon of June 24, as major firms including Toyota and mobile carrier SoftBank went into free fall.

A trader sits at his desk under the day's performance board at the Frankfurt Stock exchange, the day after a majority of the British public voted for leaving the European Union, on June 24, 2016.

An "In or Out" sign is pictured outside a house in Hangleton, England, on June 23, 2016. Britain holds a referendum on whether to stay or leave the European Union. Millions of Britons began voting Thursday in a bitterly-fought, knife-edge referendum that could tear up the island nation's EU membership and spark the greatest emergency of the bloc's 60-year history.

City workers carry in a ballot box for counting at Gibraltar University after the closing of polling stations on the day of the EU Referendum.

Polling signs are removed at Llanishen Leisure Centre as voting comes to an end in Cardiff, Wales.

Referendum workers verify the validity of ballots in the verification center before counting at Gibraltar University after the closing of polling stations on the day of the EU Referendum in Gibraltar.

The North East region European Union referendum count takes place in Sunderland, United Kingdom.

A man wheels ballot boxes into Llanishen Leisure Centre in Cardiff, Wales.

Barbara House who supports Brexit, waters her plants outside her house while a poster advertising Britain leaving the EU is attached to her window in Headington outside Oxford on June 23, 2016. Millions of Britons began voting today in a bitterly-fought, knife-edge referendum that could tear up the island nation's EU membership and spark the greatest emergency of the bloc's 60-year history.

Satirical artist Kaya Mar poses with a Brexit-themed artwork depicting UK Independence Party leader Nigel Farage, left, and former London Mayor Boris Johnson, in London as Britain holds a referendum on wether to stay in, or leave the European Union. Millions of Britons began voting Thursday in a bitterly-fought, knife-edge referendum that could tear up the island nation's EU membership and spark the greatest emergency of the bloc's 60-year history.

UK Independence Party leader Nigel Farage poses for photographers as he leaves a polling station south of London as Britain holds a referendum to vote on whether to remain in or to leave the European Union.

An elderly woman is reflected in a puddle of rain water as she arrives at a polling station at the Royal Hospital in Chelsea, west London, as Britain holds a referendum to vote on whether to remain in or to leave the European Union.

Voter Anne Whitman swims at Arundel Lido, set up as a polling station, in Arundel, southern England, as Britain holds a referendum on whether to stay or leave the European Union.

Jacqui Vaughan, left, and Sophie Allison, on horses Splash and Sharna, ride out of the driveway of a private residence used as a polling station, near Reading, west of London, as Britain holds a referendum to vote on whether to remain in or to leave the European Union. The rural house where Allison runs her livery business has been a polling station for local residents for more than 40 years.

A volunteer hands an unmarked ballot paper to a voter inside a bus being used as a temporary polling station in Kingston-Upon-Hull, northern England, as Britain holds a referendum to vote on whether to remain in or to leave the European Union.

British Prime Minister David Cameron and his wife, Samantha, leave after voting in the EU Referendum at the Central Methodist Hall in London.

Nuns leave a polling station after voting in the EU Referendum in London. Britons voted on whether to remain in or leave the European Union in a referendum on 23 June.

Chelsea pensioners enter a polling station to vote in the EU Referendum in London. Britons voted on whether to remain in or leave the European Union in a referendum on 23 June.

Several Gibraltarian voters wait to cast their ballot at a polling station in Gibraltar. Britons are deciding whether to remain in or leave the European Union.

People arrive to cast their ballots in the EU Referendum in Gibraltar. A result on the referendum is expected on Friday morning.

Jade Murphy stands outside the polling station at Notre Dame Primary School after voting in the EU referendum in Glasgow, Scotland. The United Kingdom has gone to the polls to decide whether or not the country wishes to remain within the European Union.

A woman in a wheelchair with British and European Union flags shows her support for the United Kingdom to remain in the European Union on the day of the EU Referendum in Gibraltar. The United Kingdom and its dependent territories went to the polls to decide whether or not the United Kingdom will remain in the European Union.

A man accompanied by his dog laughs as he exits a polling station after voting in the EU referendum in Belfast, Northern Ireland. The United Kingdom has gone to the polls to decide whether or not the country should remain within the European Union.

British Prime Minister David Cameron and his wife, Samantha, leave after voting in the EU referendum at the Central Methodist Hall in London on June 23, 2016.

Britain's Labour Party leader Jeremy Corbyn smiles as he arrives to cast his vote in the EU referendum at a polling station in Islington, north London.

Members of the public hold flags at a stay-in, pro-EU Referendum event in Parliament Square in London on June 19, 2016.

A bartender pulls a pint of beer decorated with EU Referendum beer taps in a pub in London on June 22, 2016.

British Prime Minister David Cameron reacts as he travels on his campaign bus from Bristol, England, on June 22, 2016, as the prime minister campaigns to avoid a Brexit ahead of the EU referendum. Rival sides threw their efforts into the final day of campaigning Wednesday, on the eve of Britain's vote on EU membership that will shape the future of Europe.

Former London Mayor, and "Vote Leave" campaigner Boris Johnson is pictured with a pint of beer ahead of meeting with members of the public and supporters in Piercebridge, England, on June 22, 2016, as he continued to campaign for a Brexit.

A woman reads a British newspaper backing the 'Vote Remain' campaign on the London Underground on June 22, 2016.

A "Leave" supporter poses in Clacton-on-Sea as UK Independence Party (UKIP) leader Nigel Farage visits on June 21, 2016.

Liberal Democrat supporters gather in a park for a "Remain" rally by Liberal Democrat Leader Tim Farron in Carshalton on June 21, 2016.

A "Leave" campaigner is seen in Clacton-on-Sea as UK Independence Party (UKIP) leader Nigel Farage visits on June 21, 2016.

People walk past a pop-up "Brexit Tattoos" tattoo shop offering satirical anti-EU pro-Brexit tattoos for free, in central London on June 22, 2016. The shop, open for one day only, is the idea of the pro-EU "Remain" campaign.

A 'Vote Leave' campaigner displays campaign buttons on his suit on June 22, 2016, in London.

London Mayor Sadiq Khan delivers a speech at a 'Vote Remain' event in London on June 22, 2016.

UK Independence Party (UKIP) leader Nigel Farage delivers a keynote speech in London on June 22, 2016.

A man backing the 'Vote Remain' campaign walks along a street in London on June 22, 2016.

A taxi driver holds a sticker for the "Vote Leave" pro-Brexit campaign as he drives past news media in London on June 22, 2016.

A pro-EU banner being towed behind a plane passes Big Ben in the Houses of Parliament in London on June 22, 2016, on the final day of the EU referendum campaign before Britain goes to the polls to vote on continuing its membership in the EU.