The operator of the Nauru detention centre has received 67 allegations of child abuse - 30 of which are against staff.
The information was included in answers to the Australian senate inquiry which is looking into allegations of sexual assault, abuse and neglect at the detention centre.
The perpetrators comprised parents, minors against other minors, and allegations by minors against adult asylum seekers.
Transfield has taken a broad approach to what might be considered "child abuse", so the numbers include allegations of any kind of physical abuse including shoving, pushing, and inappropriate physical contact.
Transfield Services says it also received 33 allegations of rape or sexual assault up until May this year, either at the hands of staff or other asylum seekers.
The allegations include verbal threats of sexual assault, inappropriate touching, and inappropriate advances.
Transfield hasn't been able to confirm how many of the 33 complaints were for rape. But it does refer to the first allegation of rape it received (as outlined in the Moss Review) to be an incident reported in August last year.
The rape was alleged to have been carried out by a fellow asylum seeker.
It says five detainees have also reported being asked for sexual favours in exchange for contraband items.
Transfield, which won a $1.2 billion tender from the Australian Government to manage the facility, says all allegations had been referred to the Immigration Department.
The hearing of the senate inquiry was held in May and was prompted following the release of the Moss Review, which detailed assault of asylum seekers by guards and staff.