A 29-year-old man has been arrested on suspicion of assisting an offender in connection with the murder of nine-year-old Olivia Pratt-Korbel.
Merseyside Police said warrants were executed at three properties in the West Derby area of Liverpool on Thursday.
A spokesman said: “The man has been arrested on suspicion of assisting an offender and taken into custody where he will be questioned by detectives.