St. Joseph’s Prep football player Ryan Gillyard collapsed and died during a workout earlier this morning, the Inquirer reported.

Gillyard, a 15-year-old freshman from Upper Darby, was warming up with his teammates at the team’s practice field on Cecil B. Moore at 11th Street, the Inquirer reported. Shortly after warmups concluded, he collapsed, said school spokesman Bill Avington.

No information has been released yet about what caused Gillyard’s sudden collapse. He was rushed to Temple University Hospital with several of his coaches, where he then died, the Inquirer reported.

Avington said the school will be holding a mass tomorrow in his remembrance, and that counselors will be available through the weekend and on Monday when students return for classes.

Steve Bohnel can be reached at steven.bohnel@temple.edu or on Twitter @Steve_Bohnel.