People across the UK are casting their votes in the biggest test of political opinion since the general election.
-- Benjamin Wright (@benwrightjourno) May 5, 2016
The bitter battle to be London mayor and the fight for control of the Scottish parliament have attracted most attention, but 16 million people are eligible to vote in council elections across England, and there are elections for the Welsh National Assembly.
Voted before work. I love the smell of democracy in the morning! #PollingDay
-- Sairah Rehman (@SairahSays) May 5, 2016
A gorgeous sunny morning to cast my vote for London Mayor and Assembly! #PollingDay
-- François Guesnet (@fguesnet) May 5, 2016
The spirit of democracy is alive and kicking - well, at least it is on Twitter.
-- Alanna Harris (@alannaharrisTF) May 5, 2016
-- Sian (@sianreed93) May 5, 2016
-- Ryan Hooper (@RyanJHooper) May 5, 2016
-- David Young (@DavidYoungPA) May 5, 2016
It's even drawn across the skies...
-- Eleni (@elenistefanou) May 5, 2016
However, not everyone has been finding the process problem-free.
When did voting get so complicated? Three sheets of A4. Not to be folded. And Sadiq's middle name. #pollingday
-- Graham Pugh (@TrumptonFireman) May 5, 2016
... with issues particularly in Barnet, North London. Names were missing from polling lists across the area and residents attempting to cast their vote were stopped.
The council asked those affected to come back later and told voters to take their polling card with them.
Disgraceful ! Problems voting in Barnet. Despite turning up with voting card told am not on the list and a dispute about whether I can vote
-- erol izzet (@erolizzet) May 5, 2016
-- Charlotte Henry (@charlotteahenry) May 5, 2016
Wrong electoral list at my Barnet polling station so many can't vote for London Mayor. Isolated incident?
-- Susan Freeman (@Propertyshe) May 5, 2016
Barnet Council has since apologised for the bungling.