Foreign Minister Julie Bishop has described conditions in mining camps as being worse than those at the Nauru immigration detention centre.
Ms Bishop's comments follow a damning UNHCR report last month, which called on the Australian Government to stop sending asylum-seeker children to the detention centres, singling out the Nauru centre in particular, saying it is rat-infested, cramped and very hot.
This followed an Amnesty International report which described conditions in the detention centres as "cruel, inhuman, degrading and violating prohibitions against torture."