Labour leadership contender Sir Keir Starmer has signalled he would take action to “diversify” the press if he won the race to succeed Jeremy Corbyn.

Following the death of TV presenter Caroline Flack, who took her own life, Sir Keir said the wider media had been responsible for “amplifying” the messages coming from social media.

Speaking at the latest leadership hustings in London, he condemned the constant “vilification” of Labour politicians in the press.

He said that both the traditional media and social media companies needed to take responsibility for the human impact of their actions.

“I think it shocked a lot of people yesterday,” he said in reference to Flack’s death.

“It wasn’t just social media, it was the media amplifying what social media was doing. It was both strands. There is a human impact.”

Labour leadership contest
Rebecca Long-Bailey said the treatment of Harry and Meghan by the press was unacceptable (Aaron Chown/PA)

He added: “The press more widely have to take responsibility as well. Not just for the hatred and abuse but for the vilification constantly of Labour MPs and Labour leaders.

“We have got to do something to diversify our press, to have a better media.”

Fellow leadership contender Rebecca Long-Bailey condemned the way the press had treated the Duke and Duchess of Sussex.

“We know the impact certain elements of the media have on people in public life,” she said.

Labour leadership contest
Lisa Nandy said social media companies should not be allowed to police themselves (Jane Barlow/PA)

“Harry and Meghan have moved out of the country because of the way they have been treated by the media. It is not acceptable.”

She said that Labour should press the social media companies to take a “hard-line approach” to dealing with online abuse.

“We have got to recognise the impact that that has on individuals. It is more so on individuals in public life,” she said.

However Lisa Nandy, the third candidate left in the contest, said social media companies could not be left to police themselves, suggesting the current situation was like “the Wild West”.

“I worry about the approaches that say we allow the social media companies to regulate themselves,” she said.

“In no other area of life would we allow private companies to police themselves. We ought to make sure the state has a system of regulation and support around that.

“The challenge isn’t how you shut it down, the challenge is how you make sure that that technology is used as a force for social good and not as a force for social evil.”