Two detectives accused of dissuading one of Jimmy Savile's alleged victims from supporting a prosecution in 2008 have been referred to the UK police watchdog.

It came as Cardiff Royal Infirmary was named as the latest hospital under investigation as part of inquiries into sexual abuse by the former television presenter on National Health Service premises.

Earlier this year, a report by the Crown Prosecution Service found that one alleged victim was put off backing court action by comments that two unnamed officers made.

One of the officers, identified only as DC T, allegedly told the woman that a prosecution would be difficult because Savile was a "big celebrity", and that the DJ's wealth meant he would have top lawyers who would make "mincemeat" of her.

He and another officer, DS O, also wrongly told her that her claims would need to be corroborated before any prosecution.

The report said the consequences of the officers' actions might have been unintentional.

The Independent Police Complaints Commission said it has directed Sussex Police to refer the conduct of the two over their handling of the alleged indecent assault.

The woman came forward in March 2008 to claim that Savile assaulted her in a caravan in around 1970 when she was in her early 20s.

She withdrew her support for police action because she feared she would struggle to find the information they said they needed, for example contact details for people she knew at the time.

Meanwhile, Health Minister Norman Lamb confirmed that the Cardiff Royal Infirmary has become the 13th hospital to be investigated as part of inquiries into the Savile abuse.