Polls will open this morning in the Corby by-election, the seat was made vacant by the departure of Louise Mensch.
Voting will also take place in Manchester Central. This seat was made vacant when MP Tony Lloyd resigned to become a candidate for the Police and Crime Commissioner election, which is also running today.
Cardiff South & Penarth will also see a by-election. the previous incumbent Alun Michael also stood down to seek election as a Police and Crime Commissioner.
Ed Miliband claimed that Middle England was turning its back on David Cameron, after Labour won the Corby by-election on a 12.7% swing.
Labour today held Manchester Central and Cardiff South and Penarth constituency seats in their respective by-elections.