Penn State fraternity Phi Kappa Sigma was suspended indefinitely due to hazing violations, the university announced Wednesday. The fraternity can request to lift its suspension in a minimum of four years.

Phi Kappa Sigma, commonly known as Skulls, was placed on interim suspension on September 27 for hazing misconduct. In the midst of its interim suspension, Phi Kappa Sigma violated protocol and was sentenced to a four-year minimum suspension on October 10.

The fraternity appealed the sanction, but it was denied by the university, according to the release.

Phi Kappa Sigma was accused of hazing violations in 2018, and “the recent investigation determined that hazing persisted and attempts to address the on-going concerns were unsuccessful.”

As a result of its suspension, Phi Kappa Sigma cannot operate as a university-recognized student organization, which includes not being able to participate in events like THON.