Auckland hapū Ngāti Whātua Ōrākei has lashed out at Hauraki tribal support for the East West Link in Auckland.
The Environmental Protection Authority has been holding a board of inquiry hearing over the past 10 weeks to hear public submissions on the NZ Transport Agency's plan to build the four-lane highway between Penrose and Onehunga in Auckland.
Ngāti Whātua Ōrākei spokesperson Ngarimu Blair said he was encouraged Manukau Harbour iwi were united in their fight to protect the Manukau and Te Hopua a Rangi from further destruction.
He said the project would destroy 25 hectares of habitat for rare and endangered species along the Mangere inlet.
"It angers us ... that Hauraki-based iwi such as Ngāti Maru and Ngāti Pāoa who are not ahi kaa here submitted in support or remained neutral on the motorway.
"This is the problem when boundaries are not respected as NZTA conveniently give equal weight to the korero of iwi who do not live here.
"Those iwi should simply leave this to us as we are the ones left dealing with the consequences of this roading."
Ngāti Maru spokesperson Paul Majurey said Mr Blair was attacking NZTA for engaging with all mana whenua on the roading project.
"It is a matter of record that Ngāti Maru lodged a neutral submission on the project given there are outstanding issues over the protection of spiritual and cultural values and wahi tapu."
Mr Majurey said Ngāti Maru was one of the 13 iwi of the Tāmaki Collective that are recognised in the collective settlement deed and collective settlement legislation with outstanding claims in relation to the Manukau Harbour.
He said there were also Tāmaki tribes who lodged submissions in support of the roading project, such as Ngāti Tamaoho.
The hearing is due to end on 15 September.