A 19-year-old San Diego State University freshman who required medical attention last week after he had attended a fraternity event has died.

The San Diego Union-Tribune reports that Dylan Hernandez was found unresponsive Thursday morning in his residence hall room. He reportedly attended a fraternity event Wednesday night. He was taken to a local hospital, but died on Friday.

It was unclear whether alcohol was a factor in the death.

University President Adela de la Torre has suspended all 14 fraternities that make up the university's Interfraternity Council.

The school has been experiencing disciplinary problems with many of its fraternities, and alcohol has been involved in some cases.

Hernandez had been pledging Phi Gamma Delta, a fraternity that was placed on probation in 2017 “after being found in violation of regulations pertaining to alcohol at off-campus fraternity events,” according to The Daily Aztec, the student newspaper.

At the time of Hernandez’s death, six fraternities had been suspended for violating university rules, and four were under investigation, the university says.