The Ministry of Health has announced 51 community cases of COVID-19 on Sunday, 23 of which have yet to be linked to the original Auckland outbreak.
All of the new cases were found in Auckland apart from four in Waikato.
"As at 9am today, 28 of these cases are linked, of whom 18 are household contacts and 23 remain unlinked with investigations continuing to help determine their connection to the current outbreak," the ministry said in a statement.
"Four new cases were confirmed in the Waikato overnight. Two cases (one in Hamilton and one in Raglan) were known contacts of existing cases, including one individual who was already in managed isolation."
There have now been 1945 cases in the Delta outbreak.
Nineteen of the latest COVID-19 cases were infectious in the community, the ministry said.
Ministry data shows there are 29 people in hospital with COVID-19, five of whom are in intensive care.
Meanwhile, Director-General of Health Ashley Bloomfield confirmed 130,002 people were vaccinated against COVID-19 on Super Saturday.
"People across the motu embraced Super Saturday like their communities' lives depended on it. It was inspiring to witness as we know the COVID-19 vaccine is key to our efforts to control the virus," Dr Bloomfield said in a statement.
"Auckland did incredibly well with its biggest ever vaccination day and I congratulate and thank everyone there who stepped forward to protect themselves, their whānau and their community - 41,081 people were vaccinated there yesterday, including 9039 first doses and 32,042 second doses."
