Auckland will move down COVID-19 alert levels as long as no new cases emerge - Jacinda Ardern

Prime Minister Jacinda Ardern says she expects Auckland will drop down to COVID-19 alert level 1 on Monday, as long as no new cases arise.

"Bar anything untoward arising I would expect we move down the alert levels," Ardern told The AM Show 

The official decision is expected on Monday at 3pm. 

Auckland was thrust into a strict three-day lockdown last Sunday after three cases of COVID-19 were found in the community. Over the following week, four more people tested positive. 

On Wednesday, the Government dropped Auckland's COVID-19 alert level to level 2, and the rest of New Zealand to level 1. 

Ardern says she's confident the most recent cases were the result of a "leakage" rather than a large-scale outbreak.

"We've had 70,000 tests since Sunday, so that scale and things like wastewater testing gives us confidence it's a leakage rather than an outbreak."

Despite her confidence, Ardern says areas of concern like Papatoetoe are still being treated with caution.

Papatoetoe High School was thrust into the spotlight after three positive cases were found to have attended. As a result, the school is still on high alert for further cases.

It will reopen on Monday - however close contacts of the two positive cases must test negative for COVID-19 twice before returning - and all other students and teachers must have tested negative for the virus once.