On June 23, hundreds of unmarked graves were found, the most in Canada to date, according to the Federation of Sovereign Indigenous Nations (FSIN), which represents Saskatchewan's First Nations.[17] The total number of graves was announced as 751 in a press conference the next day, over three times as many as the 215 discovered in Kamloops the previous month.[2][18] At least 600 graves were considered confirmed, since the radar technology had an error rate of 10–15%.[17] During a June 17 virtual press conference, Chief Cadmus Delorme said that this is not a mass grave site, instead calling the discoveries unmarked graves; he then alleged that the Catholic Church removed the headstones from the cemetery in the 1960s and that "... today, we have over 600 unmarked graves."[18][19]