Four people who were being questioned in connection with the death of Dublin teenager Daniel McAnaspie have been released without charge.
Two men, who were detained in Dublin on Monday morning, were being held on suspicion of murder, while another two were questioned on suspicion of withholding information.
Seventeen-year-old Daniel McAnaspie disappeared last February while in the care of the state - his body was found in a field in County Meath earlier this month.