Former prime minister Gordon Brown has said Labour can only deliver on its principles in power as he made a high-profile intervention in the leadership contest with a keynote speech.
Mr Brown said he did not aim to attack any of the candidates in a speech that set out to clearly distance himself from support for frontrunner Jeremy Corbyn.
Gordon Brown has warned the Labour party to choose its next leader carefully.
Brown did not mention Jeremy Corbyn by name in his intervention on Sunday, but it was clear the former prime minister was warning against voting Corbyn in as the party's next leader.
ITV News's political correspondent Libby Wiener reports:
Former PM avoided naming any Labour leadership candidates in his speech, but appeared to make a veiled warning against electing Corbyn.
A poll rates Jeremy Corbyn as the leadership candidate both most likely to improve Labour's fortunes and damage the party's chances.