PNG won't rush health checks on boat people "We're not going to break any law to make this happen": Scott Morrison. Photo: Brendan Esposito Papua New Guinea has cast doubt on the Abbott government's target of transferring asylum-seekers to Manus Island within 48 hours, vowing it won't break its own immigration laws to meet the deadline. Despite Scott Morrison's insistence the superfast turnaround would now be the norm, PNG Foreign and Immigration Minister Rimbink Pato said he could not commit to the time frame, which is down from between 10 and 12 days under Labor. He was speaking after Labor and some medical specialists raised concerns over Mr Morrison's pledge to transfer asylum-seekers off Christmas Island and into detention on Manus Island or Nauru, which they said would not leave time for proper health checks. Meanwhile, pregnant asylum seekers will give birth in Nauru for the first time since 2004 under the Abbott government's "no exemptions" approach to offshore detention. Fairfax Media has learnt a woman carrying twins is one of the first asylum seekers since the Howard era to face the prospect of giving birth in the tiny island republic. Refugee advocates are seeking details about the woman, who is said to be 22 weeks' pregnant and arrived on Nauru last Friday, according to sources on the island. Of six pregnant women transferred from detention on Manus Island in Papua New Guinea by Labor earlier in the year, three miscarried. A section of Nauru's only hospital burnt down in August and medical experts and campaigners say there is no proof that conditions for mothers and babies are adequate in an environment where detainees live in tents in temperatures of 40 degrees and above. In relation to the 48-hour turnaround pledge, Mr Pato said PNG was committed to working with Australia but would not break its own domestic laws or international laws to meet the 48-hour target. There will be bumps along the way in terms of going through customs, ensuring adequate medical supplies, adequate accommodation. Those are things we will try to address," he said. We're not going to break any law to make this happen. Our political commitment is to do it ... within the quickest possible time. Whether it takes 48 hours or more, that is a matter which will be ... subject to the technical requirements on the ground. I can neither guarantee nor deny it ... we will work within the spirit of the agreement. Mr Morrison said at his weekly briefing on Friday - brought forward because of Monday's public holiday - that he remained "totally satisfied" with the quick turnaround arrangement and insisted the same health checks would be done as happened under Labor. Opposition spokesman on immigration Tony Burke has slammed the 48-hour target, saying it "flies in the face" of health screening advice he was given when he was minister. "I genuinely hope Scott Morrison consulted with Papua New Guinea before he announced the 48-hour time period," he said on Friday. I'd hate to think this was yet another example of the Liberals and Nationals treating other countries as though they had no sovereignty.