Notorious jailed British killer Ian Brady, who murdered five children in the 1960s, may have revealed the grave site of one of his victims to a long-term visitor, police announced.
Greater Manchester Police (GMP) said in a statement that Brady, also known as the Moors Murderer, may have revealed the burial site of 12-year-old Keith Bennett, the only one of his victims whose body is yet to be found.
The force also announced that it was questioning a 49-year-old woman after she was arrested in Wales on suspicion of preventing the burial of a body without lawful exercise.
"On 30 July 2012, Greater Manchester Police received information that led officers to believe that Ian Brady had recently given details of the location of Keith Bennett's body to one of his long-term visitors," said the GMP statement.
Officers made the arrest after working closely with Ashworth hospital, the psychiatric institution in northwest England where Brady (74) is being held.
Between 1963 and 1965, Brady and his partner Myra Hindley lured five children and teenagers to their deaths, burying four of them on remote moorland near Manchester.
Brady was convicted of three of the murders and later confessed to two more.
The bodies of Lesley Ann Downey and John Kilbride were found in 1965, and Pauline Reade's remains were located in 1987 but Bennett's body has never been found.
Bennett was abducted on 16 June 1964, after he left home to visit his grandmother and his family have since waged a relentless campaign to locate his remains.
Winnie Johnson, Keith's mother, said in December she wanted Brady to tell her in person where her son was buried.
Hindley died in prison in 2002, aged 60.