Today Programme
BBC Radio 4

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Shadow justice secretary Richard Burgon says it has been a "deeply disappointing night" for his party.

He tells BBC Radio 4's Today programme that a no-deal Brexit is now becoming more likely because of changes in the Conservative party.

“In those circumstances we must do everything we can and use whatever mechanism we can to stop a disastrous no-deal Brexit, including a public vote," he says.

Here is recap of how the UK parties performed in the European elections:

• Nigel Farage's Brexit Party - launched just six weeks ago - received the highest share of the vote in nine of the 10 regions declared so far - overall it has taken 32% of the vote
• The pro-EU Lib Dems have also made gains, taking second place with 20%. They did best in Gibraltar (77% of the vote), Richmond upon Thames (52%) and Kingston upon Thames (47%)
• The Green Party recorded its best performance since 1989, taking 36% of the vote in Brighton and Hove and 35% in Bristol

• The Conservative Party was widely rejected by the electorate, with its worst performance since 1832
• The Labour Party fell to third place overall - fifth in Scotland - and is on course to end up with less than 15% of the vote, an even worse performance than in 2009 during the difficult days of Gordon Brown's premiership
• UKIP, the winning party in the 2014 election, failed to take any seats
• Newly-formed pro-European party Change UK also didn't win a seat
• The SNP dominated in Scotland, with 38% of the vote
• Plaid Cymru came second in Wales, beating Labour

For full results from the UK click here

Today Programme
BBC Radio 4

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Deputy leader of the Liberal Democrats, Jo Swinson, said the results last night could "give hope to all of the people out there who want to stop Brexit."

The pro-Remain Lib Dems took second place with 20% of the vote.

"Clearly Labour has had an atrocious night, and absolutely needs to get off the Brexit fence," she said.

She confirmed the party would continue arguing for another referendum on Brexit, adding that while she accepts there were "no guarantees" Remain would win, "this is too important not to fight for."

Today Programme
BBC Radio 4

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Green Party MP Caroline Lucas says her party has had an "extraordinary set of results", crediting their support for Remain and focus on climate change.

She argues the message from the European elections is that there is "no mandate for a no-deal Brexit" - pointing out that strongly Remain parties gained around 40% of the vote, while the Brexit Party and UKIP got a combined 35%.

The former Green Party leader tells BBC Radio 4's Today programme that the "terrifying vision" of no deal should be ruled out and called on Labour to strongly back another referendum.

Turnout in the UK was just below 37%.

This is on course to be the second highest in any European election - second only to 2004 when the turnout was partly inflated by the use of all-postal ballots in some parts of England.

Places that voted most strongly to Remain in the referendum saw turnout increase more compared with the last election in 2014 than places which voted most heavily for Leave.

In Europe, turnout was the highest for 20 years, at 51%.

See full results for the UK here.

BBC Breakfast

Lib Dem president Baroness Sal Brinton said the results "clearly demonstrated that both the Conservatives and Labour Party did badly because they were absolutely split and couldn't articulate what they wanted on Brexit".

She said the Lib Dems were the "strongest Remain party... that's what paid dividends for us."

Baroness Brinton said: "People had written us off and said we couldn't recover."

Today Programme
BBC Radio 4

Leader of the Brexit Party, Nigel Farage, said his party will contest the next general election.

"We've done amazing things in six weeks," he said.

"I'm not pretending that to set up the infrastructure to fight 650 seats - perhaps for an October election - is easy."

"But that work starts this afternoon."

He says the party will begin writing a full manifesto.

Today Programme
BBC Radio 4

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Nigel Farage, leader of the Brexit Party and who was re-elected as an MEP in the South East, welcomed the party's results.

"We've topped the poll in a fairly dramatic style," he said.

The Brexit Party was the biggest winner of the night in England, with 26 MEPs, and two more in Wales.

"I absolutely insist that we do have a mandate to now be part of that [Brexit negotiating] team."

"I'm quite happy to help the government get ready for the 31 October by becoming part of that team," he said.

Professor Sir John Curtice
Polling expert

There were two largely separate battles taking place in the European elections in the UK.

One was for the support of those who voted Leave in the 2016 referendum.

The other was for the backing of those who voted Remain.

The outcome of the first of these battles was decisive and widely anticipated in advance. The second was rather messier, but might have just as important an impact on the debate about Brexit in the crucial weeks and months between now and when the UK is due to leave the EU on October 31st.

Read more: What the EU election tells us about support for Brexit

In England:

The Brexit Party was the biggest winner in England, with 26 MEPs elected. The party's leader, Nigel Farage, is once again an MEP in the South East.

The Lib Dems - who campaigned on an anti-Brexit line - topped the poll in London, taking three out of the eight seats in the region.

In Wales:

Wales has elected two MEPs from The Brexit Party, one from Plaid Cymru and one Labour.

The Brexit Party topped the poll in 19 out of the 22 council areas.

In Scotland:

Scotland is yet to formally declare, but the SNP is on course to increase its number of MEPs from two to three amid a collapse in support for Scottish Labour.

In Northern Ireland:

Northern Ireland's count does not begin until later, with most results expected on Tuesday.

See the results in full here.

Today Programme
BBC Radio 4

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Labour MP David Lammy says Labour must "get its act together" and back another Brexit vote.

He tells BBC Radio 4's Today programme that the party "tried to ride two horses" in the European elections and "we fell flat on our faces".

"We lacked clarity in this election," Mr Lammy says.

“We simply cannot go on with this mealy-mouthed approach to a confirmatory vote."

"We are hiding on the biggest issue of the day," he adds.

Today Programme
BBC Radio 4

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Anna Soubry, Change UK's Brexit spokesperson, said the performance of the newly-formed party was "extremely good" given how young the party is.

Change UK, formed in February, failed to win any seats last night. It received a 3% share of the vote, the same as Ukip.

"It gives us a great base for the future," she told the Today programme.

"We now want to formulate policies that are based on evidence, absolutely grabbing hold of that centrist, progressive, small 'l' liberal and moderate politics which is lacking in this country."

Is a future pact with the Liberal Democrats out of the question?

"These things may well emerge, but for goodness' sake, this is a long way down the line," she said.

Katya Adler
Europe Editor

If you're scratching your head right now, confused by conflicting interpretations of the European parliamentary election, fear not, just read on.

Contrary to some stark political predictions ahead of the vote, the actual results seem nuanced.

The European election results 2019 can be read in different ways.

The nationalist right didn't sweep the board. Traditional governing parties were not all decimated, as some commentators had breathlessly predicted.

But there were clear trends.

Read more from Katya

BBC Breakfast

Green deputy leader Amelia Womack has acknowledged that many Remain supporters voted for the party because were a "clear voice" against Brexit.

The number of Green MEPs has gone up from three to seven after counting overnight.

"We were talking about Brexit and we were talking about climate change," Ms Womack said.

She added: "We've built on our track record of delivering in the European Parliament - whether that's tackling tax dodging, climate change, air pollution, environmental destruction, austerity - and we're proving our ability in regions where we simply haven't won before."

Norman Smith
Assistant political editor

BBC assistant political editor Norman Smith says that, on the face of it, the strong results for the Brexit Party could encourage Tory MPs and members to back "the hardest no-nonsense no-dealer in town", to see off the threat from Nigel Farage.

He says this could favour Boris Johnson - who is already doing well in opinion polls for a new leader.

However, he adds that, given the strong performance of the Liberal Democrats in Remain areas, a hard Brexiteer candidate could risk losing Tory voters who want to stay in the EU.

He says that's where candidates like Michael Gove hope they can come in.