ATHENS, Ohio — Ohio University has announced that it suspended all 15 Interfraternity Council fraternities on its Athens campus amid concerns over hazing allegations.

The university said in a statement Thursday that the decision came about due to the growing concern "elevated by allegations of hazing against seven IFC chapters."

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The university immediately suspended the affected organizations from engaging in chapter events, meetings and activities until further notice.

In a letter to IFC chapter presidents, the university said it received reports of hazing from a total of seven chapters.

One of the fraternities on campus, Sigma Pi, was expelled in the spring for hazing and other violations.

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