In Pictures

Election 2015 in pictures: 22 April

Image copyright Steve Parsons/PA
Image caption Liberal Democrat Leader Nick Clegg announced his party's plans for the public sector, at the National Liberal Club in London. He said: "The Lib Dems believe it is time to end the era of pay restraint... no more pay cuts for public-sector workers. No more pay freezes or below inflation pay rises."
Image copyright Chris Radburn/PA
Image caption David Cameron was in Bedford, here referring to his notes before speaking to workers at Dunster House.
Image copyright Gareth Fuller/PA
Image caption Kelly-Marie Blundell, the Liberal Democrat candidate for Guildford, Surrey, attempted to walk the high wire with the Moscow State Circus during a campaign photo call.
Image copyright Joe Giddens/PA
Image caption Chancellor George Osborne (left) visited William West Distribution Ltd in Ilkeston, Derbyshire.
Image copyright Carl Court/Getty Images
Image caption Conservatives Boris Johnson and Eric Pickles gave the thumbs up to another party poster.
Image copyright Stefan Rousseau/PA
Image caption Shadow health secretary Andy Burnham turned photographers to get a snap of Labour leader Ed Miliband as they visited Addenbrooke's Hospital in Cambridge. Labour said it would invest £150m a year in cancer diagnostic equipment from 2016-17 if in power.
Image copyright Andy Buchanan/AFP
Image caption Scottish First Minister and SNP leader Nicola Sturgeon posed for photographs with supporters in the Portobello area of Edinburgh.
Image copyright Ian Forsyth/Getty Images
Image caption Veteran Labour politician David Blunkett offered his support to the party's candidate for Redcar, Anna Turley.
Image copyright Steve Parsons/PA
Image caption Liberal Democrat leader Nick Clegg met apprentices at the Airbus factory in Filton, Bristol.
Image copyright Toby Melville/getty images
Image caption London Mayor Boris Johnson (left) and Prime Minister David Cameron joined a hand-printing session at the Advantage children's daycare nursery in Surbiton, Surrey.
Image copyright Christopher Furlong/PA
Image caption Further north in West Yorkshire, Mr Cameron's wife, Samantha, is also painting in blue, helping to decorate a bench at The Growing Zone allotment project in Kippax.
Image copyright Stefan Rousseau/PA
Image caption Mr Miliband was back in front of the camera later in the day, when he met Labour supporters in Ipswich.