Alternative vote 'fairer' say Miliband and Cable

Labour leader Ed Miliband and Liberal Democrat Vince Cable have called on people to vote 'yes' to the alternative vote in the referendum on changing the voting system.

Mr Miliband said that "politics can be better" than the existing voting system allows, and Business Secretary Vince Cable described AV as a more positive, simple and fair system.

The referendum on the voting system takes place on 5 May.