RNZ reports 'Akilisi Pohiva met his counterpart, John Key, at Government House in Auckland and spoke about the Recognised Seasonal Employer Scheme, assistance with battling non-communicable diseases and collaboration on tackling drug trafficking.
The Tongan leader admitted his country was struggling to rein in corruption - and a particular concern was the sale of passports.
"There has been a continued sales of Tongan passports, and this is a very serious, serious case and our government is working very hard. That is an indication of corruption," he said.