David Cameron said he fears a "witch-hunt" against gay people as a result of child abuse allegations circulating online.

The prime minister made his comment after being unexpectedly handed a list of names on ITV1's This Morning, which the presenter said were being mentioned online as paedophiles.

The PM, who did not look at the names, said anyone with any information about paedophiles should go to the police.

Nick Robinson reports.

Footage courtesy ITV1 This Morning