Searches carried out in investigation into fatal arson attack in Edenderry

The scene of a house fire in Edenderry, Co Offaly, where a woman and a young boy died (Aisling Hyland/PA) - (PA Wire)

Gardai have conducted searches as part of an investigation into the deaths of a four-year-old boy and his grand-aunt in an arson attack.

Four-year-old Tadgh Farrell was visiting his grandmother and grand-aunt Mary Holt in the Castleview Park area of Edenderry, Co Offaly, when the home was attacked shortly before 7.45pm on Saturday.