Alan Johnson's pro-EU group called 'Labour In For Britain'
Alan Johnson will chair the group, which will be run out of Labour’s headquarters in London.
A Labour source
told Total Politicsthe party was also looking for a campaign chief to “run the show on the ground” and that it hoped to have staff in place by Christmas.
Under pressure from other shadow ministers, Jeremy Corbyn was forced to clarify that Labour would be campaigning for the UK to remain in the EU under his leadership.
Mr Johnson said in June, when it was announced that he would be leading the party’s In campaign:
"The EU referendum will be the most profound political decision of my lifetime in terms of its effect on our national prosperity and Britain's position in the world. There is no such thing as a perfect institution but Britain must use its considerable influence to effect change, not lurk in the departure lounge.
"The Labour campaign that I lead will put the country's future above party machinations, emphasising the contribution that the EU has made to peace and prosperity across our continent."