Churches Set Ablaze As More Unmarked Graves Found At Canada Indigenous Schools Churches Set Ablaze As More Unmarked Graves Found At Canada Indigenous Schools The grim development follows the discovery of remains of 215 children in unmarked graves at the former Kamloops Indian Residential School in British Columbia in May and 751 more unmarked graves at another school in Marieval in Saskatchewan last week. The blazes bring to eight the number of churches across Canada destroyed or damaged. Ottawa: Two churches in Canada went up in flames Wednesday amid calls for a papal apology over abuse at indigenous residential schools where hundreds of unmarked graves were recently discovered, including 182 at a third burial site.