Prime Minister Mark Brown said this case was not connected to the visitor who tested positive for Omicron after leaving Rarotonga and arriving back in New Zealand last Monday.
He said this person - who is currently isolated and under observation at their private holiday accommodation - arrived in Rarotonga last Thursday.
They were a close contact of a family member in Auckland who tested positive on Sunday in New Zealand.
Brown said as a precaution this person got tested, and was asymptomatic, but she returned a positive result in just a few hours later.