New Zealand’s parliament was briefly suspended on Thursday after Maori members staged a haka to disrupt the vote on a contentious bill that would reinterpret a 184-year-old treaty between the British and Indigenous Maori.

The Treaty Principles Bill seeks to revise New Zealand’s foundational agreement with Maori people and is hugely unpopular, with even the prime minister deriding it.

Member of Parliament Hana-Rawhiti Maipi-Clarke led the ceremonial performance of Māori culture, tearing up a controversial bill as other lawmakers joined her in protest.