Decision-day: Prime Minister David Cameron arrives with his wife Samantha to vote in Spelsbury in his Witney constituency with his party having a tiny lead, according to a new Daily Mail poll
An exclusive eve-of-election poll for the Daily Mail by ComRes shows David Cameron has extended a huge lead over Ed Miliband as voters' preferred prime minister
Heavyweight: Boris Johnson arrives at Hanover Hall in Islington, north London, to vote with his wife Marina this afternoon
Knife-edge: Labour leader Ed Miliband and his wife Justine Thornton arrive at the polling station at Sutton Village Hall in Sutton, Doncaster, as his party and the Tories are neck-and-neck in the polls
Before and after: Mr Miliband has repeatedly refused to rule out seeking to govern even if Labour finishes well behind the Tories in a hung
Under pressure: Liberal Democrat leader Nick Clegg, arrives to vote with his wife Miriam Gonzalez Durantez on a lovely spring morning in Sheffield, as he fights to keep his seat
Prediction: Nick Clegg has claimed that the Liberal Democrats will be the 'surprise story' of polling day, insisting his party will defy predictions of an electoral mauling
Scottish question: Nicola Sturgeon voted today as police warned officials SNP supporters may use 'threatening behaviour' at polling stations
Polling day: Green leader Natalie Bennett after voting in Camden London, as she and smaller parties such as Plaid Cymru, led by Leanne Wood, also fight for seats
Northern Ireland: A medical worker was one of the first to vote at St Teresa's Primary School in Belfast as the polls opened at 7am
County Durham: An election official pins up the notices on this unusual polling station - but the bright yellow mobile unit is an upgrade for the villagers, who in previous years have voted in a caravan
Oxford: A presiding officer arranges papers at a polling station set up in a launderette in Headington, just outside the city
Cheshire: The rural community of Milton Green on the English/Welsh border are voting in their local ambulance station
Now her passport has come through in time for the general and council elections today.
Ayse, who has lived in Cambridge for the last 10 years and has five children and 21 grandchildren, was driven to the polling station by her relatives.
Up to 100 people from Hackney, east London, who registered to vote were stopped today because of a problem with online registration.
Voters in two constituencies - Hackney North & Stoke Newington and Hackney South & Shoreditch -have had problems because the council failed to process their applications because of IT problems.
Claire Mason told the Evening Standard: 'Maybe if I hadn't registered so close to the deadline I might have had a better chance.
'This election more than ever we're being told numbers are tight and with all kinds of random parties and candidates now in the frame I feel that my vote counts more.'
Steph Wilson wrote online: 'I've just been told I can't vote due to the rubbish new voting registration forms that Hackney council failed to send to me.'
This computer-generated mosaic shows the faces of more than 3,100 of the almost 4,000 candidates standing in today's general election. The head shots have been carefully montaged together and superimposed over the top of a picture of the Houses of Parliament. The clever image was made up using a computer-generated online programme called Andrea Mosiac Artworks, which allows users to create digital art using photographs and computer software. As voters head to the polls, an exclusive eve-of-election survey puts the Conservatives ahead
Daybreak: Dawn breaks at Westminster this morning as the result of the General Election is on a knife-edge for the first time in 20 years
East Sussex: Returning Officer Ahmed Jamee, prepares to open a polling station at the West Blatchington Windmill near Brighton
Cumbria: The Bush Inn, a small pub in the rural Cumbrian village of Tallentire, which is today being used as a polling station for registered voters in the Allerdale District of Cumbria
Rochdale: Peter and Christine Hodgkinson's house been transformed into a polling station for the election today. Their home has been used in elections for over 40 years following the demise of the village church and school
Glasgow: People arrive to cast their vote at The Glasgow Gaelic School in Glasgow, where experts are predicting a SNP landslide in Scotland
Manchester: Salford Lads Club made famous when Morrissey used it on the cover of sleeve of The Smiths album The Queen Is Dead is being used as a polling station
Lincolnshire: Presiding officer David Birch stands outside his caravan which is being used as a polling station on Grange Farm in Garthorpe
Birmingham: Voters are seen leaving a polling station at Bordesley Green, which is actually the community centre linked to allotments, right
West Sussex: Voters turn up to cast their vote at the polling station set up at the open-air lido in Arundel
Religious orders: Monks from Sancta Maria Abbey in Nunraw cast their votes at a polling station in Garvald, East Lothian while nuns vote at St John's Hyde Park, Central London
Veterens: Chelsea Pensioners stop to talk after casting their votes in the general election close to their central London home
Cleveland: A man heads to the polls to cast his vote at a polling station situated in Guisborough Town Football Club on May 7, 2015
Essex: Voters in Broadley Common, in the Epping Forest constituency, can vote at Craner Produce Fruit Farm
Humberside: A boxer works out on a punch bag in East Hull Boxing Club as people arrive to cast their votes this morning
Cumbria: A couple sit in their lounge as they wait for people in the small village of Pica, near Workington to cast their vote in their home