Greater Manchester mayor Andy Burnham has warned that Labour remains too "London-centric" after no civic leader from the north of England was given a speaking slot at party conference.
The former cabinet minister said he was disappointed that London mayor Sadiq Khan would be the only major municipal leader given the chance to address activists from the main platform in Brighton.
He said the decision not to give a speaking slot to one of his northern counterparts suggested the party was "half-hearted" in its commitment to devolving power in England.
Mr Burnham, who ran against Mr Corbyn for the leadership in 2015 and who quit the shadow cabinet to stand as mayor in Manchester, also questioned the decision to back the scrapping of university tuition fees rather while not doing more for those in technical education.
His comments come amid criticism that Mr Corbyn, who himself represents a London seat, has surrounded himself in the shadow cabinet with MPs from the capital including John McDonnell, Diane Abbott and Emily Thornberry.
Mr Burnham, however, insisted that his criticisms extended beyond the Labour leader.
He said scrapping student tuition fees would help those young people who could look forward to a "more middle class lifestyle" after they graduated at the expense of those in apprenticeships or technical training.