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 about a quarter of councils still to declare.
Results are also coming in from parliamentary elections in Wales and Scotland, with Labour set for an historic defeat in Wales and the SNP claiming victory in Scotland.
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 up nearly a thousand 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
Labour is on course for a historic defeat in the Senedd election, with results from nearly all seats now declared.
It brings to an end a century of political pre-eminence for the party in Wales, with even Eluned Morgan, Labour first minister since 2024, losing her seat.
Plaid Cymru will become the largest party in the newly-expanded 96-seat Senedd, winning either 42 or 43 seats, according to a forecast, short of an overall majority.
Reform is set for second place, having won around 30 seats so far, in what marks a breakthrough set of elections for the party in Wales.
The Greens have won two seats so far, their first representation in the Senedd since its creation in 1999.
The Conservatives have sustained heavy losses, whilst the Liberal Democrats have so far failed to improve on their single seat.
And sees painful losses in England
Labour has lost hundreds of seats across the country, although its losses in London so far have not been as bad as in some 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.
SNP to win fifth election in Scotland
With around half of seats declared, the BBC is forecasting that the SNP will win a historic fifth election, but fall short of an overall majority.
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.
The Scottish Greens have won two seats so far, 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 so far failed to win a constituency seat, but is hoping to do well in seats allocated from the regional list.
The Scottish Conservatives admit they will not retain second party spot. The Lib Dems have taken two seats from the SNP - but they lost the party's traditional stronghold seat of Shetland to the Scottish nationalists.
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 eye 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.
Hackney is also a key target for council elections, along with other inner London areas such as Lewisham and Newham, which are not expected to declare results until later on Friday.
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 are hoping to win control of the two new councils in Surrey, which are being elected in "shadow" form before formally taking power next year.
Other council results to come
In Birmingham - where the council is currently run by Labour - the new fragmented political landscape is on full display.
All the five main parties have a presence and with polls suggesting strong support for pro-Palestinian independents, the result later could leave the city under no overall control for the first time in more than a decade.


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