Prime Minister Jacinda Ardern has already signalled increased gathering limits for Auckland and a move to Level 1 for the rest of the country.
However, that was contingent on controlling the Auckland cluster and not seeing cases outside the region.
University of Otago epidemiologist professor Michael Baker said the recent cluster would be a focal point.
The alert levels announcement will be made at 1pm today.
- Prime Minister Jacinda Ardern
- Director-General of Health Dr Ashley Bloomfield
The Government has agreed, in principle, to move New Zealand down to Alert Level 1.
If the restrictions do change, this will happen at 11:59pm on Monday 21 September.