The 'devastated' relatives of three people who died in a house fire in Cwmbran have paid tribute to them.

Three generations of one family - Kim Buckley, 46, her daughter Kayleigh, 17, and her six-month-old grand-daughter Kimberley - perished at their home on the Coed Eva estate on Tuesday.

In a statement, the family said their loss was 'overwhelming'.

We are devastated beyond belief that three people so special to us have had their lives wiped out. Kim was a vibrant, proud mother and proud nanny whose life was not easy due to the loss of her two sons in the 1990s. She was the happiest grandmother in the world on Monday when baby Kimberley eventually came home from hospital after bravely fighting many battles for six months. Kayleigh was a lovely girl and although she found it difficult becoming a mum at first, when she eventually held Kimberley her eyes lit up like a lamp. She was so happy when her baby came home so she could become a proper mum to Kimberley. Kimberley was a beautiful baby and when she smiled it was the best thing in the world. We are so proud of Kimberley fighting for her life and we are devastated that it was taken from her so cruelly. We wish to thank family, friends, the public and the emergency services for their kindness shown to our family since this nightmare began. We would especially like to thank the people who tried to save our loved ones. We would ask that we are now left in peace to come to terms with our overwhelming loss amongst family and friends.

Gwent Police have been granted another 36 hours to question a 27-year-old man arrested on suspicion of murder.