Director-General of Health Ashley Bloomfield said they had all gone through 14 days of managed isolation and the risk of them having the virus was low. The total number of confirmed Covid-19 cases in New Zealand is now 1176.
Ministry of Health is still trying to track down, and test, 347 people who had been in managed isolation.
But there remained 367 people who had not been tracked down despite calls and text messages.
There was no media conference from the Health Ministry today.
The NZ COVID Tracer app has also now recorded 584,000 registrations. All had tested negative for Covid-19.
He will be live from 1pm.
"Members of staff treating the man were made aware that he had returned from overseas to a managed quarantine facility and appropriate protocols were followed, including the use of PPE".
"There continue to be no cases in the community".
The first case is a man in his 20s who arrived from India on June 22.
The Ministry of Health has managed to track down and test 1269 people who were in managed isolation between June 9 and 16.
The second case is a man in his 30s who arrived from Nepal via Sydney on June 18 on flight NZ102 and had been staying at the Novotel Ellerslie. "No members of staff are considered close contacts". He has been staying at the Grand Millennium Hotel in Auckland and tested positive as part of routine testing around day three of his stay in the facility.
The fourth case is a man in his 30s who was isolating at the Haka Hotel in Auckland since 24 June after arriving on AI1316. He was taken by ambulance to Auckland City Hospital last night after showing symptoms and was then tested. "He remains in the hospital in a stable condition on a ward and has not required ICU level care", the ministry said in a statement.