IRA abuse victim Mairia Cahill called for Sinn Fein and party leader Gerry Adams to publicly apologise to alleged abuse victim Paudie McGahon. She said she was hugely distressed at hearing Mr McGahon's account of what happened to him.
Ms Cahill was speaking this morning after the Irish Independent published and the BBC broadcast Mr McGahon's allegations that he was raped by a senior IRA figure in Co Louth in the early 1990s.
Speaking on RTE Radio, Ms Cahill said: "I warned Sinn Fein at the time that when they said they weren't covering up abuse that would invalidate victims and re-traumatise them and cause other victims to come forward."
It is alleged this happened in the early 2000s.
Ms Cahill said: "Sinn Fein need to admit this and accept his account in its entirety."
She added that there was "no point" Sinn Fein saying its members are not involved in "covering up abuse".
Ms Cahill (33), who claims was raped by a suspected IRA member when she was a teenager in 1997, said she still feels some "survivor guilt" for not speaking out earlier.
She has claimed that the republican movement conducted its own inquiry into her account, subjecting her to interrogation.
"Part of me feels guilty over his (McGahon's) investigation. There is always a part of survivor guilt because my investigation took place in 2000 and you always think 'what if?'" she said.
"What if I had said something then, would that have saved him going through his experience in 2002?" she added.
"I think it was much more difficult for him because he has seen how I have been treated in the aftermath. I believe his account entirely. Sinn Fein need to tell him they believe his account in its entirety and not cherry-pick."