The man convicted of murdering schoolgirl Sarah Payne has been attacked by a fellow inmate in prison, sources have said.
Roy Whiting is believed to have suffered eye injuries during the alleged assault in Wakefield Prison, West Yorks, on Friday morning.
It is understood the paedophile, 52, was taken to hospital for treatment following the incident but his injuries are not believed to be life threatening.
A spokesman for West Yorkshire Police confirmed that officers were called to an incident involving two prisoners at Wakefield Prison at around 8.39am on Friday, but would not comment on their identities.
Police confirmed that the injured inmate received treatment at the prison, before staff took him to Pinderfields General Hospital in Wakefield for further care.
The force spokesman said that no criminal complaints had been made by the injured person, so the incident was not being investigated. "There was no criminal allegation of assault made to the police so we will not be investigating," he said.
Whiting was sentenced to life in prison in 2001 for the murder of eight-year-old Sarah, who disappeared while playing near her grandparents' home in Kingston Gorse, West Sussex, in July 2000.
Her body was found in nearby Pulborough 17 days later.
In 2002, Whiting was attacked with a razor blade by fellow Wakefield inmate Rickie Tregaskis.