BBC Radio 5 Live is providing continuous coverage of the national and local elections and on the Alternative Vote referendum from 10:30pm.
Special programmes will continue in an all-night election special, which will be simulcast on 5 Live and Radio 4 and hosted by Aasmah Mir in London and James Naughtie in Glasgow.
Then tomorrow morning, 5 Live will continue with Nicky Campbell presenting from London and Rachel Burden in Edinburgh.
From 12noon, as results resume, Shelagh Fogarty will present live from Westminster. Then in a change to the usual Friday schedule Richard Bacon will present Vote 2011 from 2-4pm with further analysis of the results so far.
From 4pm Peter Allen will be live at College Green in Westminster for 5 Live Drive anticipating the result of the AV referendum.
BBC Radio 5 Live's Head of News, Stephen Mawhinney: "The national and local elections, together with the vote on the AV referendum are hugely important moments for the country and it is paramount that 5 Live is at the forefront of delivering all the breaking news, and providing comprehensive and detailed analysis of what the results mean."