GWENT Police confirmed the three who died at the house fire in Cwmbran as 46-year-old Kim Buckley, her daughter 17-year-old Kayleigh Buckley and her grand daughter, six-month-old Kimberley Buckley although they have yet to be formally identified.
They also confirmed a 27-year-old man from the Manchester area had been arrested on suspicion of murder and is currently in custody.
Chief Inspector Steve Corcoran said: “This is a tragic incident that involved three generations of the same family and our condolences are with the family of the victims. We would ask, on their behalf, for them to be left alone to grieve at this time.
"Our family liaison officers are supporting them at this dreadful time. This has affected the wider community, they were well known within the community and their loss will be keenly felt and they will be missed. We are grateful for the co-operation of the community at this awful time. We are working with partners to ensure that all those affected will be given support.
“Our officers will remain at the scene for anyone who wants to speak to them, anyone who has any concerns or any information about this incident, specifically anyone who heard or saw anything suspicious leading up to the fire, people can also call us on 101 or crimestoppers on 0800 555111.”