High profile Australian broadcaster Andrew Bolt has accused New Zealand and its Government of "backstabbing" Australia, in a seven-minute live rant on television.
It comes after New Zealand was absent from the list of countries raising concern over the World Health Organisation (WHO) Covid-19 origin report.
The WHO released a report on Tuesday into the origins of the SARS-CoV-2 virus and its transmission within China, centred in Wuhan, before it spread globally.
In May last year, Prime Minister Jacinda Ardern said the Government supported calls to evaluate Covid-19's origins, but didn't want to see it turn into a witch hunt.
The virus has so far infected more than 128 million people worldwide and killing nearly 3 million.