Updated Nov. 15: Revised to include police chief's comments.

A Texas State University student died after being found unresponsive Monday — the morning after his fraternity initiation — and on Tuesday the school suspended all Greek activities.

Matthew Ellis (Facebook)

Police said criminal charges are likely in the case.

Matthew Ellis, 20, a sophomore from Humble, wasn't breathing when officers arrived at an apartment 2 miles from the San Marcos campus around 11:30 a.m. Monday. He was pronounced dead about an hour later.

According to The University Star, the college's student newspaper, Ellis had been initiated into the campus chapter of the Phi Kappa Psi fraternity the previous night.

The Travis County medical examiner will determine Ellis' cause and manner of death. Police said alcohol may have been a factor.

San Marcos police Chief Chase Stapp said it's "pretty likely" there will be a criminal case.

"Once we know the complete picture, we will have to have discussions with the district attorney on the most appropriate course of actions," he told the Austin American-Statesman.

In a statement, university president Denise M. Trauth said she was "deeply saddened" by Ellis' death and was suspending all fraternity and sorority activities at the school.

"These chapters are prohibited from holding new-member events, chapter meetings, social functions, and philanthropic activities until a thorough review of the Greek Affairs system is completed," she said.

The school's vice president for student affairs, Joanne Smith, has been tasked with coming up with recommendations for reinstating the fraternities and sororities "that demonstrate a commitment to the core values of Texas State," Trauth said.

Earlier this year, the university suspended four fraternities — Alpha Tau Omega, Delta Tau Delta, Kappa Alpha and Pi Kappa Alpha — following a 2016 party at which a Fort Worth-area student was killed. They were suspended for alcohol-related policy violations.

Jordin Taylor, 20, was dragged about 500 feet by a shuttle bus at Cool River Ranch, a music and river-tubing venue, in October 2016.