Post mortems will be carried out today on the bodies of 8-year-old twins killed during a violent incident at their family home in Dublin.
Chelsea and Christy Cawley were stabbed to death along with their 18-year-old sister Lisa Cash at their home on Rossfield Avenue in Tallaght, just after midnight on Sunday.
The post-mortem on Lisa Cash was completed last night.
The siblings' 14-year-old brother managed to escape but was seriously injured and is still being treated in hospital.
A man aged in his 20's who was known to all of the victims is now in custody at Tallaght Garda Station.