Gardai in Cork are continuing their investigation into the murder of Tralee woman Nicola Collins.
The 38-year-old, who had been living in Togher, was found dead in a flat in the Farranree area last Monday.
The mother of three had sustained head injuries.
Two men were arrested separately in connection with the investigation and were questioned.
Both have been released from custody without charge and files are being prepared for the Director of Public Prosecutions.