A crowd of more than 500 people heard how the search for a six-year-old Donegal girl missing since 1977 will not stop until she is found.

Gardaí yesterday resumed their search for missing schoolgirl Mary Boyle within a few hundred metres from where she was last seen alive nearly 40 years ago.

A march aimed at highlighting the disappearance of Mary Boyle is to take place in Co Donegal this weekend.