There are renewed appeals for inquiry into the investigation into the disappearance of Mary Boyle.
Earlier this week, Gardaí confirmed that a second review into the case is being carried out.
6-year-old Mary disappeared from Cashelard near Ballyshannon in County Donegal in 1977.
A march is taking place in Ballyshannon this afternoon to show solidarity with her family.
Sinn Féin MEP Lynn Boylan - who raised the case in the European Parliament earlier this year - says there are unanswered questions in relation to Mary's disappearance: