University of Maine defensive back Darius Minor collapsed and died during a preseason football workout, the university confirmed Wednesday.

“The Athletics Department, our student-athletes and the entire campus mourn the loss of this bright and promising member of our community,” UMaine President Joan Ferrini-Mundy said, according to WTVR. “We ask all to keep him, his family and his friends in your thoughts.”

Minor, an 18-year-old Virginia native out of Orange County High, collapsed on the football field during a “supervised light workout” Tuesday at about 1:15 p.m., according to the university. The team’s training staff and first responders were reportedly unable to resuscitate him. Temperatures were reportedly in the low 80s Tuesday with close to 50 percent humidity when Minor collapsed. Players were wearing T-shirts and shorts during the workout, reported the Bangor Daily News.

Words cannot express the grief we have following this tragic loss,” UMaine head coach Joe Harasymiak said. “Our thoughts and prayers go out to Darius’ family and friends during this terrible time.”

A first-team All-Central Virginia wide receiver and second-team defensive back, Minor led Orange County High to three-consecutive postseason appearances. He snagged eight interceptions as a sophomore at Orange County, but his recruitment was interrupted by a knee injury, which cost him his junior season.