The discovery is in relation to unmarked graves at the site of the former Marieval Indian Residential School, which was located about 140 kilometres east of Regina.
“The number of unmarked graves will be the most significantly substantial to date in Canada,” a news release from the FSIN read.
The FSIN said “hundreds” of unmarked graves have been discovered.
The announcement will be made virtually at 9 a.m. by Cowessess First Nation Chief Cadmus Delorme and FSIN Chief Bobby Cameron.
The City of Saskatoon announced Wednesday evening that flags would be lowered to half-mast at 9 a.m. Thursday to honour the children found in unmarked graves at the site.
“(The FSIN’s announcement) brings the horrific truth of these schools right to our doorstep,” Saskatoon Mayor Charlie Clark said in a press release.
“Today, all of Saskatchewan mourns for those who were discovered buried in unmarked graves near the former Marieval Indian Residential School site,” Premier Scott Moe said in a statement.
“I understand many were children, and it is heartbreaking to think that so many children lost their lives after being separated from their families, and away from the love and solace only a family can provide.”
Moe continued to say he had spoken with Chief Cameron of the Federation of Sovereign Indigenous Nations and Chief Cadmus Delorme to offer the provincial government’s full support.
“Sadly, other Saskatchewan First Nations will experience the same shock and despair as the search for graves continues across the province,” the premier stated.
“We are grateful for the work indigenous leaders are undertaking and will continue to offer our unwavering support as we work together to help bring closure to survivors, families and communities in our province.”
The Indian Residential Schools Crisis Line (1-866-925-4419) is available 24 hours a day for anyone experiencing pain or distress as a result of their residential school experience.