The Ministry of Health was notified last evening of two positive COVID-19 cases in Christchurch from the same household.

In a statement, it says one member of the household had recently returned to Christchurch from Auckland.

The Ministry of Health says the local public health unit is gathering information from the cases to identify close contacts and exposure events, including any locations of interest.

The Ministry will undertake a public health risk assessment of the situation this morning and a further update will be provided after that.

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