Demonstrations are to set begin across the North Island Tuesday morning in response to Te Pāti Māori's call for iwi to unite for a National Māori Action Day - or Toitu Te Tiriti - ahead of Tuesday's swearing in of MPs at Parliament.
In what the party is describing as a "first hitout" objecting to the new government's plan to remove te reo from the names of government departments, abolish the Māori Health Authority, repealing the smokefree legislation, and review of all legislation that includes Treaty principles.
Protestors are expected to gather at multiple locations across Te Ika-a-Māui by 7am Tuesday.
Police are warning commuters in Auckland and Wellington in particular to expect significant delays.
Te Pāti Māori co-leader Debbie Ngarewa-Packer spoke to Ingrid Hipkiss.