Britain's re-elected Prime Minister, Boris Johnson, says the largest Conservative majority in a poll since the 1980s proves the British people want Brexit pushed through.

Key points: Boris Johnson said the election result meant the end of talk about a second Brexit referendum

Boris Johnson said the election result meant the end of talk about a second Brexit referendum The election win has made him the most electorally successful Conservative leader since Margaret Thatcher

The election win has made him the most electorally successful Conservative leader since Margaret Thatcher Mr Johnson thanked voters in Labour heartlands for putting their faith in the Tories for the first time

In a jubilant speech to party supporters, Mr Johnson stressed the United Kingdom would leave the European Union by January 31.

"This election means that getting Brexit done is now the irrefutable, irresistible, unarguable decision of the British people," Mr Johnson said.

"And this election I think we put an end to all those little, miserable threats of a second referendum."

With all results declared, the Conservatives won 365 seats and the main opposition Labour Party 203.

Declaration of the final seat was delayed until Friday, after bad weather in the Cornwall seat of St Ives prevented a helicopter from picking up voting papers from the Isles of Scilly — 45 kilometres off the coast.

The victory makes Mr Johnson the most electorally successful Conservative leader since Margaret Thatcher.

Mr Johnson met with Queen Elizabeth II at Buckingham Palace on Friday as part of a constitutional ritual where the monarch asks the winner of an election to form government.

British Prime Minister Boris Johnson was all smiles on his arrival at Buckingham Palace ( Reuters: Victoria Jones/Pool )

A short time after the meeting Mr Johnson arrived back at 10 Downing Street.

The election result was a disaster for Labour leader Jeremy Corbyn, who faced calls for his resignation even as the results rolled in.

On Friday Mr Corbyn said he was prepared to remain leader until the party chose a successor next year.

"I called for, last night, a period of reflection in the party and obviously the ruling body of the party, our national executive, will decide what process we follow then for the election of a successor to me," Mr Corbyn told reporters.

"I'm quite prepared and obviously elected to do so, to lead the party until that takes place."

Johnson says Tories have 'smashed the roadblock'

Acknowledging that the Conservatives picked up seats in traditional Labour heartlands, Mr Johnson promised to return the faith put in him by voters.

"You may only have lent us your vote, you may not think of yourself as a natural Tory, your hand may have quivered over the ballot paper before putting a cross in the Conservative box and may intend to return to Labour," he said.

"If that is case, I am humbled you have put trust in me and trust in us.

"I, and we, will never take support for granted."

Mr Johnson said Brexit would mean the UK would take back control of its borders, money, trade and immigration.

He promised to follow through on his election promises to increase funding in the health system, implement an "Australian-style" points-based immigration system and increase the numbers of teachers and police.

Mr Johnson also said his election meant action on climate change, adding in a slight dig at his political opponent.

"You, the people of this country, voted for carbon neutral in this election," he said.

"You voted to be carbon neutral by 2050, and we'll do it. You'll also be Corbyn-neutral by Christmas anyway, we'll do that too."

The decisive Conservative showing vindicates Mr Johnson's decision to press for an early election, which was held nearly two years ahead of schedule.

"We pulled it off. We broke the deadlock. We ended the gridlock. We smashed the roadblock," he said.

The European Union raised hopes Mr Johnson's victory would mean a Brexit deal was passed by Parliament quickly so the parties could move forward with negotiations of a free-trade agreement.

Earlier, Mr Corbyn indicated he planned to stand down as Labour leader but would remain in Parliament.

He said Brexit had overshadowed his social justice policies during the election campaign.

"Brexit has so polarised and divided debate in this country, it's overridden so much of a normal political debate, and I recognise that has contributed to the result that the Labour Party has received this evening, all across this country," he said.

Space to play or pause, M to mute, left and right arrows to seek, up and down arrows for volume. Watch Duration: 1 minute 59 seconds 1 m 59 s Labour leader Jeremy Corbyn says he will not lead the party to any future elections.

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