Sinn Féin leader Gerry Adams is appealing for more people to come forward with any information relating to the Disappeared.
It comes after the remains of two people were discovered in a search for Joe Lynsky by the Independent Commission for the Location of Victims' Remains in County Meath during the week.
Mr Lynskey, a former Cistercian monk, was abducted by the IRA from west Belfast in 1972.
Post mortems and DNA sampling on the bodies are due to take place in Dublin on Monday by State Pathologist Dr Marie Cassidy, though it may be some weeks before a result is reached.
Gerry Adams had this to say to anyone with information: