Results of Covid-19 testing in the community due back on Tuesday will provide a clearer picture on whether Auckland can leave Alert Level 3 at midnight on Wednesday.
Cabinet will meet again on Tuesday, as it continues to review the alert levels every 24 hours.
On Monday there were no confirmed cases of Covid-19 in the community, outside of the three already reported.
It was also announced the first batch of Pfizer vaccines arrived in the country on Monday morning and will be administered to border staff from Saturday.
The Director General of Health Ashley Bloomfield has sought to reassure the public after what he calls a tumultuous few days.
