Tonga's first positive COVID-19 case has since returned a negative test.
The country earlier this week announced a week-long lockdown after a person who travelled there from Christchurch was confirmed to have the virus.
Health ministry chief executive Siale 'Akau'ola says the case returned a negative result after being tested for COVID-19 again on Monday (local time).
"If we test him again on Friday and it is reaffirmed to be negative, then that is really good news," Dr Akau'ola said, as reported by the Matangi Tonga news website.
He said the initial positive test was "very weak".
"At the same time, we are saying that it is the Delta variant even though we can't confirm it."
The case, who's been transferred to a special quarantine facility in Tonga, travelled to the kingdom from Christchurch last Wednesday on a flight carrying 215 people.
They had four contacts in New Zealand - all of whom returned negative tests.
