The government wants to change the Citizenship Act to make fighting for ISIS a reason for losing citizenship, Immigration Minister Peter Dutton said.

The government also wants to adopt the British legal model by revoking the citizenship of extremists who are Australian-born children of immigrants or an immigrant, forcing them to take up citizenship in the birth country of their parents, or parent, Dutton said.

It also would apply to dual citizens. "The principle for us, which is very important, is that we don't render people stateless," Dutton told Sydney Radio 2GB.

Australia can currently only revoke citizenship in cases of fraud in the citizenship application or where an Australian citizen joins the armed forces of another country to fight Australia.

[Australia to strip citizenship of Australian-born jihadis with immigrant parents, CBC News, May 21, 2015]