The Ministry of Health (MoH) has announced there are 75 cases of COVID-19 in the community today - and one is in Wellington.

The case in the capital, which moved to alert level 3 this morning, is a household contact of another case.

This person had returned three previous negative tests and remains asymptomatic.

This latest bounce in numbers is not unexpected, Director-General of Health Dr Ashley Bloomfield says.

It is clear that on average the daily case numbers are lower than the peak, he says.

There are 32 people in hospital in Auckland. Eight people are in ICU and three are on ventilators.

More than 22,000 tests were processed nationwide yesterday.

The number of companies issued with travel documentation to move across the boundary in Auckland between level 3 and level 4 is more than 3,000, covering 23,000 employees, Covid Response Minister Chris Hipkins says.

Plumbers and other tradespeople can work under alert level 4 as long as they are wearing PPE to help in emergencies, Chris Hipkins says.