A British Columbia First Nation says at least 55 children died or disappeared while attending a residential school near Williams Lake, more than triple the number recorded for the institution in the National Centre for Truth and Reconciliation memorial register.

The higher figure is contained in an interim report into the St. Joseph’s Mission Indian Residential School by the Williams Lake First Nation.

The report says the National Centre for Truth and Reconciliation memorial register lists 16 children by name as having died while under the school’s care.

It says the additional 39 deaths or disappearances were verified “through archival documentation.”