SAN MARCOS, Texas (AP) — Texas State University has suspended all fraternity and sorority chapter activities following the death of a fraternity pledge after an initiation ritual.

In a statement Tuesday, university officials say Matt Ellis was found unresponsive Monday morning at an off-campus apartment. The 20-year-old sophomore from Humble, Texas, had attended a party that Phi Kappa Psi fraternity members hosted Sunday night at the apartment.

An autopsy has been ordered. Police in San Marcos, Texas, about 50 miles south of Austin, say they suspect alcohol played a role in the death.

In a statement, the Phi Kappa Psi national office says it suspended the Texas State chapter last week for unrelated matters, and it will remain suspended while the investigation continues.

University President Denise Trauth says the chapters won't be reinstated until a review is done of the entire fraternity and sorority system on campus.

In September, 18-year-old LSU student Maxwell Gruver died after police say he was forced to drink in a hazing ritual at the Phi Delta Theta house. His blood alcohol level was 0.495. Ten men were arrested in connection to the incident, all booked with misdemeanor hazing. One student also was arrested on a negligent homicide count.

And last week, Florida State University indefinitely suspended its fraternities and sororities after the alcohol-related death of a freshman pledge and cocaine charges for a member of another fraternity.