The number of young people alleged to have been sexually abused at Scouting Ireland has increased massively.
Last month, an ongoing investigation found there may have been more than 100 children abused at the youth club.
Following a historical review and 123 calls to a confidential helpline, it is now believed as many as 317 young people may have been abused.
Most of the cases date from the 1960s to the 1980s.
The Children's Minister, Katherine Zappone, said they have now identified that there may be 212 alleged perpetrators.
Minister Zappone described the large rise in numbers as "a matter of grave concern".
"As more people come forward with further information to Scouting Ireland, Tusla the child and family agency, Gardaí and other front-line support services these numbers will in all probability increase", she said.
"Supporting victims is my top priority. I would encourage anybody who has been abused or who wishes to name an alleged perpetrator to come forward.”
The Scouting Ireland confidential Freephone helpline 1800 221199 is open from 9am to 8pm Monday to Friday and 10am to 6pm Saturday and Sunday.
Tusla has also put a confidential helpline in place, 1800 805665 and this is operational from 9am to 4pm.
