Free trade opponents have been locked out of Trans-Pacific Partnership (TPP) negotiations in Auckland and the Green Party says restrictions must be lifted.
Campaigner Jane Kelsey says she and her supporters will only be allowed in on Friday, known as stakeholders day.
"We turned up this morning and found we are locked out of the entire convention centre for all 10 days except the so-called stakeholder day," she said on Monday.
"The New Zealand government has also canned the other opportunity for connecting with negotiators, a reception to which stakeholders are invited."
Green Party co-leader Russel Norman says the restrictions "confirm suspicions that the negotiations are inherently anti-democratic".
The TPP negotiations began in 2007 and this week's meeting in Auckland is the latest round of talks.
The aim is to expand the existing free trade agreement between Chile, New Zealand, Singapore and Brunei to include the United States, Australia, Vietnam, Peru, Canada and Mexico.