Laws should be tightened to stop an Islamic State-linked cohort from obtaining passports and returning to Australia, the opposition says.
But the minister responsible insists the threshold has not been reached to bar the group from receiving travel documents, despite declaring the government does not want them to return.
Some 34 women and children tied to Australians who travelled to the Middle East to fight for the militant group have been trying for days to travel home from a Syrian camp.
