Gardaí have renewed an appeal for further information in its murder investigation into a fatal house fire that killed a young woman and two children in Kilcock, Co Kildare 32 years ago.

Barbara Doyle, 20, and her two nieces, eight-year-old Mary Ellen Byrne and three-year-old Kerrie Byrne, died in the fire at the home of the Byrne family on Church Lane on 20 September 1987.

Ms Doyle was a sister of the children's mother, Elizabeth Byrne, and was babysitting on the night.

Elizabeth and her husband Aidan had gone out to a 21st birthday party when the fire broke out at their house.

In 2017 gardaí upgraded the investigation to a murder inquiry after new information was received that the fire was started deliberately.

Gardaí said they had discovered a number of strands of new evidence which they could not disclose in the event of a prosecution, but these led them to believe the fire was started deliberately.

In a new appeal launched today gardaí say they "firmly believe" that people in Kilcock and the surrounding community have information in relation to the fire.

Anybody with information is asked to contact Leixlip Garda station at 01-6667800 or the Garda Confidential Line 1800 666 111.