A professional engineering fraternity at Ohio University is under investigation and has been directed to cease and desist all organizational activities.

In a letter sent Friday to the president of the Rho Beta Chapter of Theta Tau, the university said the Office of Community Standards and Student Responsibility (CSSR) received information that alleges the organization participated in conduct that put the "health and safety of your members at risk."

While the letter did not go into detail on the allegations, the CSSR will be investigating and meeting with members of the organization.

This comes after the university suspended all Interfraternity Council Organizations on Oct. 3, but after further investigation, many of those organizations are now free of their suspensions.

As of Oct. 25, Beta Theta Pi, Lambda Chi Alpha, Phi Kappa Psi, Sigma Chi, Men's Rugby, and the Marching 110 remained under a cease and desist order.

RELATED: Ohio University lifts, modifies punishments for majority of suspended fraternities

RELATED: Ohio University rugby club team suspended while under investigation

RELATED: Ohio University investigating hazing allegations made against marching band members