David Cameron has begun a 24 hour campaign tour across England, Scotland and Wales. Fresh from speaking in Northern Ireland, Cameron's campaign for change began at 6pm today and will go on to 6pm on Wednesday. He launched the campaign in East Renfrewshire in Scotland, and will campaign through the night until he finishes with a campaign rally in Bristol tomorrow. This news story will be updated during the next 24hrs with exclusive videos of the key campaign events in the tour. 6.00pm: David is kicking off his 24hr tour in East Renfrewshire. Watch the launch live: http://bit.ly/lz7z 6.30pm: Photos from the rally in East Renfrewshire - view more on our Flickr account. 6.30pm: Read David's speech to the rally in East Renfrewshire 7.00pm: Webcameron video from David's battlebus en route to Carlisle as the 24 hour campaign continues. 10.00pm: David has arrived in Carlisle - watch live at http://news.sky.com/. 10.30pm: Photos from The Border Cod and Carlisle Fire Station- view more on our Flickr account. 11.00pm: Watch a video from David's visit to Longtown and Carlisle Fire Station in the player below. 1.00am: Photos from David's visit to WEC Engineering in Darwen - view more on our Flickr account. 3.15am: David speaks at a Morrisons supermarket distribution centre in Wakefield - read the Yorkshire Evening Post's report. 5.30am: Photos from David's visit to Grimsby Fish Market - view more on our Flickr account. 6.00am: Watch a video from David's visit to Grimsby in the player below. 6.20am: David is interviewed by GMTV - watch a replay on their website. 8.30am: David goes leafleting for our candidate in Sherwood, Mark Spencer - more photos on our Flickr account. 9.30am: David visits Sir John Sherbrooke Junior School in Calverton - see photos below and view more on our Flickr account. 10.00am: Watch David leafleting in Hucknall with Mark Sherwood and visiting Sir John Sherbrooke Junior School in the video below. 11.45am: Lunch with paramedics at Dudley Ambulance Station - see photos below and view more on our Flickr account. 2.30pm David arrives at Ysgol Daffyd Llwyd in Powys, Montgomeryshire - see photos below or view more on our Flickr account. 3.00pm Watch a video of David's visit to Ysgol Daffyd Llwyd below. 6.30pm David will be addressing a rally in Bristol, bringing to a close his 24 hour campaign for change. You can watch it live on the BBC News Channel or Sky News. 7.00pm David speaks at the General Election rally in Bristol - view more photos on our Flickr account. 7.30pm Read David's speech to the election rally in Bristol and watch the video below.