A managed isolation worker showing COVID-19 symptoms has reportedly put Hamilton District Court into lockdown after showing up there. 

The New Zealand Herald reports the woman is awaiting the results of a test for the virus, but showed up to court anyway - her whereabouts now unknown.

"Many" people are reportedly inside the court, while others who were outside have left. 

A Ministry of Justice spokesperson confirmed to Newshub the court went into lockdown after a member of public with COVID-19 symptoms entered.

A woman outside court waiting to get in to join her son told Stuff she had been advised to go home at 11am as it would be 'a lot longer' before she would be allowed in.

There are currently 61 active cases of COVID-19 in New Zealand, all found in managed isolation. Six are of the new more infectious strain from the UK. 

The Ministry of Health has urged Kiwis to keep using the COVID Tracer app so any potential outbreaks can be contained without lockdowns.

"We are seeing a notable drop-off in people using the COVID Tracer App. The ministry would like to remind all New Zealanders to keep each other safe and use the COVID Tracer app to scan QR codes and turn on Bluetooth functionality," the ministry said a statement on Tuesday.

"As the COVID-19 pandemic continues around the globe we need to remain vigilant so we can continue to enjoy the conditions which we are lucky enough to be living under today."

This is breaking news - more to come.