It was revealed on Friday that significant quantities of human remains were discovered at the site of the former St Mary's Mother and Baby Home, an institution where unmarried pregnant women were sent to give birth, in Tuam, Co Galway.
The remains were discovered in structures which appear to be related to the treatment of sewage or waste water, by the Mother and Baby Homes Commission.
The Commission described itself as "shocked" by the discovery. "These remains involved a number of individuals with age-at-death ranges from approximately 35 foetal weeks to 2-3 years," it said.
The Bon Secours Sisters would not comment on the find, which Minister for Children Katherine Zappone described as "disturbing".
An information meeting for the residents of the Tobar Jarlath and Dublin Road estates in Tuam was called at short notice following the news.
Cllr Peter Roche confirmed that there are concerns that the site could stretch under some private homes. "[Residents] are deeply traumatised, because the suspicions they had for many years were confirmed," he said.
The find has vindicated the research of amateur historian Catherine Corless, whose work helped lead to the setting-up of the Commission.