The Morrison government says "nothing has changed" about its response to the families of Islamic State fighters trapped in Syria, despite a public offer from the United States to use its military assets to help remove more than 60 Australian women and children being held in camps there.

On Saturday, in response to the offer from senior US counter-terrorism official Nathan Sales, a spokesperson for Home Affairs Minister Peter Dutton said while the government was "doing what we can" with NGOs in the region, it would not put Australian officials at risk. They said "nothing has changed" in terms of Australia's position on the matter.

US Coordinator for Counter-terrorism Nathan Sales in Washington on Thursday. Credit:AP

A spokesperson for the Department of Foreign Affairs and Trade added that the government was taking a "case-by-case approach" to the issue but also stressed it would "not put Australian lives at risk to extract people from these dangerous situations".

The Sydney father of an Australian woman who is in Syria's al-Hawl camp with her three children, urged the government to make a formal request to the US.