Gardaí investigating the murder of a teenager in Limerick four years ago have arrested a woman in her late 30s.
The woman is the eighteenth person to be questioned over the death of Jeffery Hannan.
The body of the 19-year-old from Southill was found near his family home on November 22, 2007. He had been beaten to death.
The woman was arrested in Limerick city this morning and is being held at Henry St garda station under Section 30 of the Offenses Against the State Act.