The Coalition's pledge to build a tent city for up to 2,000 asylum seekers on Nauru has been caught up in an alleged conflict of interest controversy.
Opposition immigration spokesman Scott Morrison travelled to Nauru to make the policy announcement at the expense of the logistics company Toll Holdings, a provider of tents.
Toll's own website says: "We deliver camp and base logistics in remote locations".
The company has had Australian Government contracts on Nauru for a year and the ABC's PM program understands Toll regularly charters flights to the far flung island.
This week it had room for Mr Morrison and a News Corporation journalist and photographer.
The Federal Government says the situation is extraordinary, but the Coalition says there is no reason the trip should not have been funded that way.
Asylum seekers who arrive in Australia by boat can now be processed in Nauru and, if found to be genuine refugees, can be resettled there under an agreement signed by Prime Minister Kevin Rudd and Nauru's president Baron Waqa.
The memorandum of understanding is similar to a deal Mr Rudd struck with Papua New Guinea prime minister Peter O'Neill a fortnight ago.
Mr Rudd says refugees who arrive in Australia will be sent offshore for processing and will be free to "settle and reside in Nauru".
He says the new deal is consistent with Australia's obligations under the refugee convention.
"The memorandum of understanding signed today ensures the unauthorised maritime arrivals transferred to Nauru will receive proper and humane treatment," Mr Rudd said.
He also says he understands Nauru is a small country and the number of people who could be permanently resettled there would be up to the government of Nauru.