Prime Minister Jacinda Ardern has announced New Zealand will remain at Level 4 until at least Friday night, with Auckland set to remain in lockdown until at least August 31.
It comes as the country recorded a further 35 new cases on Monday, taking the overall total to 107 cases since the first case last Tuesday.
Key facts:
Ardern said given the number of cases and quick spread of cases, Auckland needed to remain in lockdown for the full 14-day virus period.
"We need more information, we need more certainty. We don't want to take any risks with Delta," she said.
Jacinda Ardern said they were still getting to grips with the extent of the outbreak.
"If the world has taught us anything it is to be cautious with this variant of Delta."
The prime minister warned Delta had yet to peak and Auckland in particular was not guaranteed to exit Level 4 next Tuesday.
Ardern reminded people that unless they were an essential worker, they should not leave their home. Likewise, if they were identified as close contacts they need to isolate and get someone else to go grocery shopping for them.
Follow 1 NEWS' live updates of New Zealand's latest outbreak as it happens.
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