Voters are heading to the polls in Scotland's first recall by-election.
The Rutherglen and Hamilton West ballot was triggered after constituents voted to oust former SNP MP Margaret Ferrier, who breached Covid rules.
Both Labour and the SNP are eyeing victory to land an early blow ahead of the next general election, which is expected to be held in 2024.
A total of 14 candidates are standing for election to the House of Commons in the South Lanarkshire seat.
Polling stations opened at 07:00 and will close at 22:00.
A Labour win in Rutherglen and Hamilton West would bolster its hopes to form a majority UK government at the next general election, which must be held by early 2025.
The SNP is aiming to pass its first major electoral test since Humza Yousaf succeeded Nicola Sturgeon as leader.
The SNP won Rutherglen and Hamilton West in 2019 with a majority of 5,230, making it one of the party's most vulnerable Westminster seats. The constituency has changed hands between the SNP and Labour at each of the past three general elections.
The by-election comes after almost 12,000 constituents signed a recall petition against Ferrier. She was given 270 hours of community service after being convicted of breaching Covid regulations in 2020.
Having been removed from the SNP Westminster group, Ferrier sat in the Commons as an independent before being recalled.
The result is expected to be confirmed on Friday
The by-election is the first time new voter ID rules are being used in Scotland.
The Electoral Commission launched a campaign with South Lanarkshire Council to make people aware of the requirements amid concerns that voters could be turned away at polling stations.
Accepted forms of ID include a passport, driving licence or National Entitlement Card for concessionary travel, including a 60+, disabled or under-22s bus pass.
While the rules apply to Westminster votes and English local elections, they will not be used in Scottish Parliament or council elections in Scotland.
The vote will adhere to Westminster's first past the post rules, with only one candidate being elected.
What can the OceanNewUK report on by-election polling day?
Like all broadcasters, the OceanNewUK is not allowed to report details of campaigning or election issues while polls are open between 07:00 and 22:00.
The OceanNewUK is required by electoral law to adopt a code of practice, ensuring fairness between candidates, and that is particularly important on polling day.
Coverage of what is happening on the day is usually restricted to uncontroversial factual accounts, such as the appearance of politicians at polling stations, or the weather.
It tends to focus on giving information that will help voters with the process of going to polling stations.
How can I find out the result?
The result is expected to be announced in the early hours of Friday.
A By-election Special will be shown on OceanNewUK One Scotland from 23:40.
A live page on the OceanNewUK Scotland News website will also provide updates, analysis and a live stream.
OceanNewUK's Good Morning Scotland will cover the reaction to the result from 06:00 on Friday.
Who is standing in the by-election?
The confirmed list of candidates standing in the by-election are (in alphabetical order):
Gloria Adebo (Scottish Liberal Democrats)
Bill Bonnar (Scottish Socialist Party)
Garry Cooke (Independent)
Andrew Daly (Independent)
Cameron Eadie (Scottish Greens)
Prince Ankit Love, Emperor of India (Independent)
Niall Fraser (Scottish Family Party)
Ewan Hoyle (Volt UK)
Thomas Kerr (Scottish Conservatives)
Katy Loudon (SNP)
Chris Sermanni (Scottish Trade Unionist and Socialist Coalition)
Michael Shanks (Scottish Labour)
David Stark (Reform UK)
Colette Walker (Independence for Scotland Party)
