Hanson wrote to the prime minister on Wednesday calling for deportation or internment for those people on the security agencies' "terror watch list", in the wake of the Melbourne attack involving a Somali refugee who had been granted parole.

Internment is a policy of detaining a particular group of people for political reasons and is often justified by safety concerns.

The idea of "interning" citizens has a controversial history in Australia, with thousands of Germans, Italians and Japanese detained in internment camps during World War II.



"Stronger action needs to be taken on migrants and refugees who come to the attention of Australian security forces," Hanson wrote.



"Those on watch lists who are not Australian citizens need to be deported and those who are, interned to neutralise their possible harm to this country."