In pictures: Labour conference: day four

Gordon Brown gives an interview in the main conference hall of the Brighton Centre as he dismisses the Sun's decision to back the Conservative party Photograph: Oli Scarff/Getty Images

The Sun's political editor, George Pascoe-Watson, right, talks with the justice secretary, Jack Straw, outside the Labour party conference Photograph: Peter Macdiarmid/Getty Images

The health secretary, Andy Burnham, speaks at conference Photograph: Dominic Lipinski/PA

A delegate watches Andy Burnham's speech Photograph: Carl De Souza/AFP/Getty Images

The prime minister listens to Harriet Harman's speech Photograph: Oli Scarff/Getty Images

Harman makes her point to delegates Photograph: Toby Melville/Reuters

A delegate reads the Sun after the paper announced it was switching its support from Labour to the Conservatives Photograph: Stefan Rousseau/PA

Brown walks onto the stage before a speech by the secretary of state for children, schools and families, Ed Balls Photograph: Dominic Lipinski/PA

Ed Balls and comedian Eddie Izzard watch a video Photograph: Oli Scarff/Getty Images

Balls gestures during his speech Photograph: Martin Argles/Guardian

Delegates wave papers to indicate their wish to address the conference Photograph: Oli Scarff/Getty Images

Tony Woodley, joint general secretary of Unite, tears up a copy of the Sun Photograph: Getty Images