The government has asked South Korea to do a second Covid-19 test on a person who tested positive after arriving from New Zealand last week.
The person arrived last week after transiting via Singapore. The Korean government says they think the person most likely caught Covid in Singapore.
But the Minister of Health Chris Hipkins says they can't be certain, so the Ministry of Health has started contact tracing here as well.
A New Zealand traveller tested positive in Malaysia at the start of the month but that turned out to be a "false positive".
The Prime Minister, Jacinda Ardern, says the government wants to keep an open mind about about the cause.
The Ministry of Health says the person had no symptoms.
