For the first time in New Zealand's history, New Zealand's borders will be closed to everyone in the world except for New Zealand citizens and residents.
The dramatic steps, which come into effect at 11.59pm today comes as an attempt to "protect New Zealand" from the Covid-19 virus, Prime Minister Jacinda Ardern told media tonight.
"Protecting New Zealanders from Covid-19 is our number-one priority."
In recent days, Ardern said it has become increasingly clear that the spread of the virus in other parts of the world meant the Government needed to take stronger border measures.
The total number of Covid-19 cases around the world has now surpassed 200,000.
Any retuning New Zealanders will still be required to self-isolate for 14 days upon entry.
The partners, legal guardians or any dependent children travelling with returning Kiwis may also return, but will need to self-isolate as well.
But immediate family members cannot travel by themselves and need to travel with New Zealand citizen or resident family member on the same flight home.
And exemptions are in place for "key workers" in the health sector, Ardern said.
Unlike previous border restrictions, the new rules will apply to would-be travellers from the Pacific Islands.
Ardern tonight again reiterated her warning to anyone who does not follow the self-isolation rules, that they would face consequences.
On Saturday, Ardern announced that every person from every country, excluding the Pacific Islands, would have to self-isolate for 14 days when coming to New Zealand.
But she made clear tonight that further steps needed to be taken.
"The rapidly worsening global health situation means that the threat to people's health in New Zealand has risen."
The decision was made despite the fact there is still no evidence of a community outbreak in New Zealand.
There are now 28 cases of Covid-19 in the country – all have overseas links.