A returnee in managed isolation was transported to hospital last night with Covid-19 symptoms.
The person who was in Jet Park Quarantine Facility in Auckland was taken around 11pm.
A quarantine spokesperson said full infection prevention and control protocols were observed.
It comes after an unscheduled press conference yesterday by director general of health Dr Ashley Bloomfield, who announced a frontline border worker had tested positive for Covid-19.
The 24-year-old man was transferred to Jet Park Quarantine Facility yesterday.