A man in his 20s and a woman in her 30s were arrested on Thursday as part of an investigation into suspected organised crime activity.
Two people are due to appear in court this afternoon following a fatal arson attack in Waterford earlier this week.
Philip and Kim English, along with their sons Callum and Jayden, died following the fire at a house in the Birchwood Estate on Tuesday morning.
Two other children from the family remain in critical condition in hospital.
A man in his 20s and a woman in her 30s were arrested on Thursday as part of an investigation into suspected organised crime activity.
Garda Commissioner Justin Kelly says investigators have made significant progress, with further arrests anticipated.
Seven searches have been conducted, while a vehicle and electronic devices have been seized for examination.
A joint funeral for the four victims is scheduled to take place on Monday afternoon.
Public Sector Strikes Suspended As Government And Unions Prepare For Pay Talks
Gardaí Seize €3M Of Illegal Vapes, Cannabis Products In Carlow And Other Counties
Dangerous Driving Videos Still Being Shown On TikTok
Twelve New Gardaí Allocated To Kildare, As Garda Numbers Hit All Time High
Gardaí Continue To Question Two People About Waterford Arson Attack
Yuno Energy Latest Company To Announce Winter Price Freeze
Kildare Minister Launches Ireland's First AI Research Institute
Gardaí Arrest Two People In Connection With Waterford Arson Attack
