Ed Miliband has won the Labour leadership after narrowly beating brother David in a dramatic run-off vote ahead of the party's conference.
Ed won by just over 1% from former foreign secretary David after second, third and fourth preference votes came into play. He said a "new generation" had taken charge of Labour and it had to change.
Ed Balls was third, Andy Burnham fourth and Diane Abbott last in the ballot of MPs, members and trade unionists. Mr Miliband, 40, replaces acting leader Harriet Harman in the contest triggered by the resignation of Gordon Brown.
In his victory speech, he vowed to unify the party, telling delegates: "The Labour Party in the future must be a vehicle that doesn't just attract thousands of young people but tens of thousands, hundreds of thousands of young people who see us as their voice in British politics today."
He paid tribute to his predecessors Gordon Brown and Tony Blair, but added: "We lost the election and we lost it badly. My message to the country is this: I know we lost trust, I know we lost touch, I know we need to change.
"Today a new generation has taken charge of Labour, a new generation that understands the call of change."