The Ministry of Health is reporting a third border-related case with the Omicron variant.

"Today's case is a household contact of the Air New Zealand crew member who tested positive last week with the Omicron variant," says an MOH spokesperson.

"The household contact has been in isolation during their symptomatic period.

"Public health staff are continuing to investigate however at this stage there are no locations of interest or exposure events."

The household contact has now been transferred to a MIQ facility.

The second household contact, who's also in isolation, continues to test negative, reports the MOH.

"The case is fully vaccinated."

Today, 29 Covid cases have been identified at the border.

"While still awaiting whole genome sequencing of these cases, it is expected that some of these cases will be the Omicron variant.

"This variant of Cobid-19 continues to be having a significant impact globally, so is not unexpected to see an increase of cases identified at the border."