Public health expert Professor Nick Wilson is calling on the government to tighten the border below and above Auckland.
There were 56 cases in the city yesterday, the highest since September 1st, and three cases in Waikato and one in the Bay of Plenty.
Cabinet will today decide on its next move with restrictions.
Covid-19 Response Minister Chris Hipkins says they will take into account the most up-to-date case numbers, and unlinked cases - there were 19 yesterday.
One modeller is predicting Auckland's daily Covid-19 case numbers could reach triple figures by the end of the month.
Professor Wilson, from the University of Otago, says only those doing the most essential jobs should be allowed out and they should have to stop for a short time at the border for a rapid antigen test.
