Covid-19 has been detected in Christchurch wastewater, eight days after the first case of the Delta variant was reported in Auckland.
It was announced at the Government's 1pm Covid-19 update today.
The virus was detected in samples collected from the Christchurch catchment on August 21 and 23 after previous negative results.
However, there were at least three positive cases in MIQ facilities in Christchurch and the results were consistent with virus shedding from those cases, a Ministry of Health spokesperson said.