A Catholic research organisation says the best place for Australia to process its refugees is in Australia.
Re-opening a detention centre for asylum seekers on Papua New Guinea's Manus Island is among the options the Australian government's discussing as it considers a regional solution to refugee processing.
The facility at Manus and another on Nauru were used last decade and closed under the government of Kevin Rudd.
The director of the Edmund Rice Centre, Phil Glendenning, says there's another island that's perfectly suited for refugees.
"There is a very big island not far from PNG, not far from Nauru, not far from Christmas Island that has the resources, the capacity, the infrastructure to process people in a speedy manner, an effective manner, it's called Australia. And that's where they need to be processed."
Phil Glendenning says previous asylum seekers processed through Australian-run offshore facilities have been killed after being sent back to their home country.