The architects of the Uluru Statement campaign for constitutional recognition are calling on Indigenous Affairs Minister Ken Wyatt to stop acting unilaterally and creating confusion around the government's commitment to an Indigenous Voice to Parliament.

Professor Megan Davis, Pat Anderson and Cape York leader Noel Pearson, who all sat on the Referendum Council, will write to the Minister again this week outlining their concerns.

“Minister Ken Wyatt’s various pronouncements since his appointment as minister responsible have introduced uncertainty and much cause for concern on the part of Aboriginal and Torres Strait Islander communities," constitutional law expert Professor Davis said.

Megan Davis and Pat Anderson from the Referendum Council along with Noel Pearson presenting the Uluru Statement from the Heart in 2017. Credit:Alex Ellinghausen

"The straightforward commitment to a process of co-design of a Voice has been thrown into confusion by the Minister’s often difficult to interpret public statements."