Rt Hon JACINDA ARDERN (Prime Minister): I have been advised that, as with all countries which have faced resurgence, we should not rule anything in or out without evidence. That's why we have undertaken border testing that has covered our front-line agency workers, testing across our managed isolation facilities, contact tracing, and environmental testing—and even secondary environmental testing at the worksite, that remains our earliest sign of this outbreak. To date, we have not established the source of the current cluster, but investigations continue. 