Wellington City Council says about 40 addresses are uninhabitable following the intense storms and flooding which battered the city early last week.

The minister of immigration is rejecting concerns proposed changes to the law will unfairly target some of the country's most vulnerable migrants and open the door to US-style immigration raids.

Eyesight experts warn there are children in New Zealand who have gone blind due to malnutrition, including a boy who eats only hot chips, crisps and the occasional Nutella sandwich.