Yvette Cooper MP, Labour's Shadow Home Secretary, said:
"Alan is a great loss to the shadow cabinet after being both a brilliant minister and campaigner for the Labour Party and I wish him and his family well.
"I greatly enjoyed Foreign Affairs and the important work we were developing on issues ranging from the International economy, Afghanistan and Human trafficking. Now I welcome the opportunity to take on this Tory led Government and their shocking cuts to the police, whilst exposing the damage they are doing to communities right across the country.
"It's a big job and one which I'm looking forward to."