At a glance: Election results so far
PA MediaReform UK has made big gains at the expense of Labour and the Conservatives in English council elections, with a handful of councils still to declare.
Labour has suffered a historic defeat in the Welsh Senedd and the SNP has held onto power for an unprecedented fifth time in the Scottish Parliament.
The polls across Scotland, Wales and 136 English local authorities are the biggest set of elections since the 2024 election, and widely seen as a crucial test of Sir Keir Starmer's premiership.
Here are the key developments so far - and what's still to come.
Reform UK wins big (again)
Getty ImagesReform UK has picked upmore than 1,350 council seats so far, continuing its success after its breakthrough in town halls last year.
Nigel Farage's party has won big in former Labour heartlands, including in Sunderland and Barnsley, where it took control of the councils after half a century of Labour leadership.
Reform has also made gains at the expense of the Conservatives, seizing control of Newcastle-under-Lyme, Suffolk, and Essex, which hosts the parliamentary seats of half a dozen shadow ministers.
Reform also won control of Havering, which borders Essex, delivering the party its first-ever win in a London borough.
The party was in its infancy the last time these councils were up for election, meaning it is only possible for the party to win majority control in areas where all seats are being contested.
Labour wiped out in Wales
Plaid Cymru has emerged victorious in Wales, winning 43 seats in the Senedd but finishing short of a majority in the newly-expanded 96-seat Senedd.
Reform is in second place with 34 seats, in what marks a breakthrough set of elections for the party in Wales.
And Labour was pushed into third place in the Senedd, with its leader Eluned Morgan, Labour first minister since 2024, losing her seat as well.
The Conservatives have sustained heavy losses too, with their 22 members slashed by two-thirds, leaving a rump of seven.
The Greens have won two seats, marking their first representation in the Senedd since its creation in 1999, and the Liberal Democrats failed to improve on their single seat.
And sees painful losses in England
Labour has lost more than 1,300 seats across the country, although its losses in London were not as bad as in some of the party's other traditional heartlands.
Labour lost control of Thurrock to Reform, whilst the surge for Nigel Farage's party also saw Labour lose control in areas including Redditch, Hartlepool, Tameside, Hyndburn, and Cannock Chase.
It also lost control of Cambridge City Council, where the Greens made gains, and Leeds, where it was squeezed by gains from both the Greens and Reform.
In the prime minister's backyard of Camden, in north London, Labour has held on to power despite losing 16 council seats, as the Greens gained 10.
That will be a relief for Sir Keir, whose constituency is Holborn and St Pancras in the borough, as he his leadership comes under fresh pressure.
SNP to win fifth election in Scotland
The SNP is by far the largest party in the Scottish Parliament but likely to remain just shy of a majority in Holyrood, with less than 40 seats still to declare.
That will be a historic fifth election win for the SNP, whose party leader John Swinney retained his Perthshire North seat.
The Liberal Democrats and Conservatives are a distant second and third, although the Liberals lost the party's traditional stronghold seat of Shetland to the Scottish nationalists.
Scottish Labour has taken Na h-Eileanan an Iar and Edinburgh Southern from the SNP, but leader Anas Sarwar says his party has lost the "argument for change" amid a "national wave" of disappointment for Labour, which has picked up about 20% of the total seats.
The Scottish Green Party's vote share has been far lower but more concentrated than Labour's, translating into two constituency seats, ousting SNP minister Angus Robertson in Edinburgh and taking former SNP leader Nicola Sturgeon's old constituency in Glasgow.
Reform UK - which currently has no representation in Holyrood - has now taken five constituencies, having pinned its hopes to seats allocated from the regional list.
Tories continue to struggle
In early counting, the Tories won back control of Westminster from Labour and gained seats to become the largest party on Wandsworth Council again.
But those results, in two previously flagship London councils, proved to be bright spots in an otherwise poor set of results for the official opposition so far.
The Conservatives have been losing seats to Reform in places like Brentwood and North East Lincolnshire - and in Hampshire, where it has lost control of the council for the first time since 1997.
Having lost control of Suffolk and Essex to Reform, the Tories have also lost control of Norfolk, where Reform won nearly half the seats being contested.
Meanwhile, in parts of southern England including Surrey and Sussex, the Tories face a challenge from the Liberal Democrats.
Greens gains in London
Getty ImagesThe Green Party of England and Wales has won its first-ever elected mayors in Hackney and Lewisham,and seized control of the outer London borough of Waltham Forest from Labour.
On top of the mayor, the Greens have taken control of the borough, which was a key target.
However, Labour held onto another Green target borough in Islington, despite the Green Party making large gains, and Newham has yet to declare.
Outside the capital, the party's best result has been in Norwich, where it took control of the city council from Labour, and Hastings, where no single party was previously in control.
It has also picked up seats in places like Salford, Oxford, Southampton and Exeter, as well as Manchester, where it made 17 gains among the 32 seats up for grabs on the city council.
Mixed bag for Lib Dems
It has been a mixed set of results for the Liberal Democrats so far.
They won control of Stockport and Portsmouth, where they were already the largest party, picking up seats from Labour, and posted gains in Sutton and Richmond-upon-Thames, two south-west London strongholds.
But in Hull, Reform UK gains saw the Lib Dems lose control of the council.
They had held hopes of winning control of Tory-run Hampshire, but a Reform surge meant that, despite Lib Dem gains, no party is in overall control there.
The Lib Dems took clear wins in the two new councils, East and West Surrey, which are being elected in "shadow" form before formally taking power next year.
Birmingham among handful of council results yet to come
In Birmingham - where the council is currently run by Labour - the new fragmented political landscape is on full display and the city will be under no overall control for the first time in more than a decade.
In a truly terrible night for Labour, just over a dozen councillors are left from the former 65-strong ruling group.
Reform UK are the largest single group on 21, but are some distance from an overall majority, which would require 51 seats.
All the five main parties have a presence on what is Britain's largest council and there has also been strong support for pro-Palestinian independents.
But counting stopped short of the finish line, leaving a single ward where the current Labour council leader is a candidate, which will not now be dealt with until Monday.


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