An organisation working with young people in care has called for more training for staff at Oberstown Campus in Dublin.
It comes after a HIQA report found that children in the youth detention centre were not always safe.
The HIQA report also describes how a child was restrained with handcuffs by up to seven members of staff.
The incident is documented in a HIQA inspection report into Trinity House and Oberstown boys and girls detention centres in Dublin, all of which are located on the one premises.
Director of EPIC– Empowering People In Care – Jennifer Gargan said more training is needed immediately for staff at the centre.
"These young people are very vulnerable, they're very challenging at times- and the work is very challenging.
"It is imperative that management put in place proper training for staff and proper supervision and support for them."
"Otherwise, staff can't work in an environment that is this challenging."