First Nation Tk’emlúps te Secwépemc say ground-penetrating radar was used to locate remains of 215 Children. "To our knowledge, these missing children are undocumented deaths," Tk'emlúps te Secwépemc Kukpi7 (Chief) Rosanne Casimir said in the statement.

The Kamloops Indian Residential School was in operation from 1890 to 1969, when the federal government took over administration from the Catholic Church to operate it as a residence for a day school, until closing in 1978. Mary Ellen Turpel-Lafond, director of the Indian Residential School History and Dialogue Centre at the University of British Columbia, cited "massive ongoing problems" with historical records "held by certain Catholic entities that they will not release"