Nine First Nations in Ontario are asking a court for an injunction that would prevent the federal and provincial governments from moving forward with some of the most contentious aspects of recent laws meant to fast-track infrastructure projects.

Lawyers for the Indigenous groups say in a legal filing that the two laws ‘violate the constitutional obligation of the Crown’ and want both struck down

A group of Canada's First Nations has launched a constitutional challenge to recently passed laws that would fast-track approval of infrastructure projects like mines and oil pipelines, arguing the measures violate the government's obligations to Indigenous people.