A second person has been arrested today in connection with the investigation into the death of Sharon Whelan (30), and her daughters Nadia (2) and Zsara (7), at Roscon, Windgap, Co Kilkenny, on Christmas Day.
The two children died as a result of smoke inhalation following a fire but postmortem results suggest that Ms Whelan was already dead by the time the fire destroyed her remote rented home near the village of Windgap on the Kilkenny-Tipperary border.
Their bodies were pulled from the house at about 9am on Christmas Day when locals saw the property engulfed in flames.
A woman in her late teens was arrested this morning and is being detained under Section 30 of the Offences Against the State Act at Kilkenny Garda station.
A man in his 20s was arrested yesterday and is being held under Section 4 of the Criminal Justice Act at Kilkenny Garda Station. He can be detained for up to 24 hours.
Gardaí renewed their appeal for anyone with any information to contact them at Kilkenny Garda station on 056 777 5070.