A Cork TD is calling on the Children's Minister to launch an investigation of the grounds of the former mother and baby home at Bessborough.
Donnchadh Ó Laoghaire raised the matter in the Dáil during a debate on the Birth Information and Tracing Bill.
A commission into mother and baby homes could not locate the burial place of 859 children who died at the home from 1992 to 1998.
Survivors and campaigners raised concerns last year about plans to build 179 apartments on the grounds of the former home, with An Bord Pleanála ultimately rejecting the plan.
Speaking in the Dail this morning Sinn Féin's Donnchadh Ó Laoghaire says the graves need to be found.
"As a Department in terms of state policy, I think you [Children's Minister Roderic O'Gorman] and your department need to be identifying what is the best way these sites, and this is not the only site like this, can be treated and preserved, and can be investigated in a way that's sensitive and in a way that finds out exactly what went on.
"It is an issue of concern to the people of Cork generally, but particularly those who were born in Bessborough, who had people were belong to them in Bessborough, and who died in Bessborough.
"I think that story that needs to be told, and I think that your department has a role in that."