I'm no plotter, says David Miliband
David Miliband has been forced to deny plotting against his brother amid claims that the pair are still feuding over the Labour leadership.
The former foreign secretary called for the party to unite behind Ed, dismissing reports that he was hoping for him to fail as "soap opera".
"I have moved on from the leadership election and so should everyone else," Mr Miliband said in a statement. "Ed won, I stand fully behind him and so should everyone else."
The latest wave of speculation over the brothers' relationship has been sparked by an unauthorised biography alleging that the fallout from last year's contest was far worse than either has admitted publicly.
David is said to have effectively accused his younger brother of lying about his conduct in the contest last year.
The revelations have fuelled doubts about Mr Miliband's future at the helm of the party amid criticism of his performance against David Cameron.
Last week's leak of a text of the victory address David Miliband had planned to deliver - admitting Labour's economic stewardship was flawed - did nothing to dampen rumours of divisions.
But in his statement on Sunday the elder sibling insisted: "We all have our part to play in supporting Ed and the frontbench team to ensure we expose this Government for its reckless policies that are damaging the country. The rest is soap opera of which I want no part and the public have no interest."
The appeal for unity was echoed by shadow defence secretary Jim Murphy, who wrote on the LabourList website: "My advice to everyone involved in this week's briefing and counter-briefing is just shut up and get on with your job. Clearly Ed M has become the focus of a lot of this. People should get off his back. Last year's leadership election has gone: it's in the past."
Mr Miliband will try to get back on track on Monday with a keynote speech acknowledging that some voters see the party as having encouraged a "take-what-you-can approach" among benefit scroungers and millionaire bankers.