Detectives are continuing to hold a man in connection with the murder of a schoolgirl on moorland 31 years ago.
Lesley's body was found on moorland off the A672 in Yorkshire
Lesley Molseed, 11, left her Rochdale home on 5 October 1975 on an errand for her mother but never returned.
Three days later her mutilated body was found on the moors just off the A672 in Ripponden, West Yorkshire.
West Yorkshire Police said a 53-year-old man from Oldham was arrested on Sunday and was being questioned over the killing.
Lesley, who was sexually assaulted and stabbed 12 times, disappeared after going out to buy a loaf of bread and an air freshener.
Stefan Kiszko, from Rochdale, served 16 years in prison for her murder, but was freed on appeal in 1992, when new evidence proved he could not have killed her. He died a year later.
Stefan Kiszko was freed on appeal after spending 16 years in jail
His mother, Charlotte, who had campaigned relentlessly to prove his innocence, died a few months after him.
In 2003 detectives made an appeal for information on the BBC Crimewatch programme after advances in DNA technology provided a genetic profile of Lesley's killer.
The profile helped police to rule out several known sex offenders, including the Yorkshire Ripper Peter Sutcliffe.
After the appeal was broadcast detectives took more than 250 calls with information and said they had 90 new suspects.
At the time Lesley's mother April said she was "absolutely elated" after hearing about the new DNA evidence.
On Lesley's disappearance she added: "After two hours, I knew she was gone - I could feel it in the whole of my body.
"And I never lost that feeling, it just grew stronger and stronger and I thought 'I'm never going to see her again'."