New Zealand's "sausages of shame" struck a chord with those in COVID-19 ravaged parts of the world.
Jacinda Ardern shared the letter online on Saturday.
It's Jacinda Ardern's fourth visit to Waitangi as Prime Minister.
A lone protester lashed out at "inequality" during an otherwise peaceful Waitangi Day dawn service.
The Prime Minister and other dignitaries are in attendance.
New research reveals more than half of Kiwis have never visited Waitangi Treaty Grounds.
"It was a shocking thing to happen in any workplace."
The letter was sent to workers for CPB Contractors.