Officers from Operation Kenova have been granted additional time to question a 72-year-old man who was arrested yesterday (Tuesday) in connection with the investigation.
The man was arrested on suspicion of a number of offences. Detectives were today (Wednesday) granted a further 36 hours to question him.
He remains in custody at an undisclosed location. No further details of the place of arrest or where he is being held will be released due to security reasons.
Anyone with any information relating to Operation Kenova can contact the team by calling 01234 858298 or by email