GRIFFITH, Ind. (CBS) — Students at a northwest Indiana grade school are accused of drawing up a “hit list” of fellow students.

Neither school officials nor police are releasing specifics on the length of the list, the reasons why the students being accused put it together, or how it was to be carried out.

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In a letter to parents of students at the Wadsworth Elementary School, Griffith Superintendent Peter Morikis said school personnel found the list on March 28. They brought it immediately to Principal Michelle Lavin, and to Wadsworth’s resource officer and counselor.

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The school brought in police, and caseworkers from the Indiana Department of Child Services.

“The safety of our students is always the number one priority,” he wrote.

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Federal law limits what Morikis can say, but he assured parents in the letter that the accused students have been removed from school, pending the outcome of the investigations, and said all parents of students on the list were notified separately. He wrote that he cannot disclose either the names of those accused, or the consequences they face.