ACT's leader says the Government isn't prepared to return all Crown-owned land in Northland to its iwi.

Over the weekend, the Waitangi Tribunal provided a report on extensive Te Tiriti breaches against Ngapuhi.

It recommends the Crown apologise, return land, offer compensation and enter talks to rework our constitutional framework.

David Seymour says there've been claims on land in almost every part of the country.

"But I'm not aware of any region in New Zealand where all Crown-owned land has been returned."

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