A 37-year-old female has been arrested in Limerick in relation to the investigation into the murder of Shane Geoghegan.
She is being detained at Ennis Garda station.
Earlier, one of the 14 people questioned about the murder of Shane Geoghegan last November has been released.
A file on the matter is being sent to the DPP.
The arrest bring to 14 people who are in custody as part of the investigation.
