Christopher Luxon has told Ministerial Services everyone needs to be "fully aware of their obligations", after his office said it had no record of a document that came to light following a court order.

Iwi leader and climate activist Mike Smith is accusing the government of a "co-ordinated campaign of secret lobbying, political interference and corporate influence at the highest levels of power".

The government is extending the minimum English language requirements under the Accredited Employer Work Visa.