The first UK results have been declared in the EU Parliament elections, after the polls closed across Europe.
Voting took place against the backdrop of Brexit, with both main parties expecting to be punished for the current paralysis at Westminster.
All 28 EU member states are electing MEPs, and countries have been voting since Thursday.
The UK will be electing 73 MEPs for its 12 regions under a system of proportional representation.
Figures so far suggest that the turnout in some areas has risen sharply, while others have seen a fall compared to the last election in 2014.
Wales saw the highest increase in turnout, with a five percentage point increase to 37.3%. The South East, South West and North East also saw a boost in the number of people casting their vote.
But in Northern Ireland turnout fell nearly six percentage points to 45.1%, while smaller drops were also recorded in the West Midlands, North West and Eastern regions.
The total turnout in 2014, in terms of valid votes cast, was 35.4%.
Opinion polls suggest that Nigel Farage’s Brexit Party could pick up large numbers of seats, with the Liberal Democrats also expected to increase their share of the vote, thanks to Remain supporters.
Polling expert professor John Curtice said: “It is not unlikely that the initial interest in tonight’s results, apart from how well the Brexit Party does, is the status of the race for second place – some polling has suggested it is close between Labour and the Lib Dems.”
He said that for the Lib Dems to overtake Labour they need just over a 9% swing across Britain as a whole.
“So whether or not they meet this target in the early results could well prove to be a crucial indicator to the overall picture tonight,” he said.
Analysis: By Laura Kuenssberg, BBC political editor
Both of our big main parties expect to be punished very severely for the meltdown in Westminster over Brexit.
The flip-side for the smaller parties? The Lib Dems are feeling buoyant and of course, Nigel Farage is back with a vengeance.
It is possible if the Brexit Party are top that they will have a very profound impact on what comes next in the UK’s attempts to leave the EU.