British Prime Minister David Cameron and eurosceptic leader Nigel Farage have made a last ditch effort to impact on the referendum on Britain's EU membership.

Cameron, speaking the day before the vote on why Britain should remain in the EU, said on his Twitter account: "Vote 'stay,' so our children will have a brighter future."

Nigel Farage, a British politician and leader of the UK Independence Party (UKIP), in turn, called on his supporters to vote for Britain's exit from the EU [also known as Brexit]. "Let's bring our country back home," Farage wrote on his Twitter page, adding #IndependenceDay as a hashtag.

Polling booths throughout the United Kingdom were open for voting on the referendum to stay or leave the EU. Some 47 million people are eligible to vote.

The question on the referendum is worded as follows: "Should the United Kingdom remain a member of the European Union or leave the European Union?"

British, Irish and Commonwealth citizens over 18 who are resident in the UK, along with UK nationals living abroad are eligible to vote on the question.

Voting closes at 22.00 (00.00 Kyiv time). There are no official exit polls scheduled.

Election officials are expected to publish the results of the vote before working day starts in the Manchester mayoral office.

Cameron announced his decision to hold the plebiscite in February following lengthy talks with EU leaders, during which he agreed on modified conditions for Britain to remain in the EU bloc.

In exchange for compromises from EU leaders, Cameron said he would ask his countrymen to cast votes in favor of remaining in the EU.