Gardai have extended the period of detention of a man they've been questioning over a child's disappearance nearly 40 years ago.
6 year old Mary Boyle vanished while visiting her grandparents in Ballyshannon County Donegal in March 1977.
A 64 year-old man was arrested in the midlands yesterday and taken to Mullingar Garda Station for questioning.
Singer Margo O'Donnell is a relative of the Boyle family - she says they've had a 'life of hell', over Mary's mysterious disappearance:
