The Texas Alcoholic Beverage Commission is investigating the death of a 20-year-old sophomore at Texas State University following a fraternity party.

"If it is found that alcohol played a role in this event, we will expand our investigation to identify any retailers who may have violated the law by selling to a minor or an intoxicated person," Bentley Nettles, TABC Executive Director said.

Police said Matthew Ellis was found dead at an apartment Monday afternoon.

According to a preliminary investigation, it's believed Ellis may have died from alcohol poisoning. An autopsy has been ordered to determine the exact cause of death.

Authorities say Ellis was a pledge for the Phi Kappa Psi fraternity at Texas State. A family friend told KENS 5 that Ellis was at a fraternity event Sunday night and may have drunk too much.

"We are heartbroken by the death of Texas State University student and Phi Kappa Psi new member Matthew Ellis," said Phi Kappa Psi Executive Director Mark Guidi. "Our thoughts and prayers are with his family, friends and the entire TSU student body during this difficult time."

A statement from the president of the university states that the school has "suspended activities of all Greek fraternity and sorority chapters at Texas State," elaborating that the Greek organizations would be "prohibited from holding new-member events, chapter meetings, social meetings, social functions, and philanthropic activities until a thorough review of the Greek Affairs system is completed."

Ellis was from the Houston area and majoring in business at the time of his death. So far, no arrests have been made.