Air Force football player Hunter Brown had a medical emergency on his way to class Monday and died. He was 21 years old.

The Air Force Academy announced his death on Tuesday.

“Hunter was a standout offensive lineman on the Falcon football team and was well-respected in his squadron,” said Lt. Gen. Richard M. Clark, U.S. Air Force Academy Superintendent, in a statement. “The entire U.S. Air Force Academy mourns his loss, and our hearts and condolences are with his family, his squadron, and all who were touched by this incredible young man.”

According to reports, Brown, a sophomore from Lake Charles, Louisiana, had just left his dorm room and was making his way to class when he suddenly collapsed. Emergency services responded to the scene, but efforts to revive the cadet were unsuccessful.

“Our players, staff and entire Academy have been so blessed and fortunate to have Hunter as a part of our lives. He was a pure joy to coach and have as a teammate,” Air Force coach Troy Calhoun said. “He was tough, a great worker, and no one unselfishly pulled harder for others than Hunter. His mom and dad, Candyce and Dustin, raised a wonderful son who made each of us a better person. We love our great brother, and our thoughts and prayers are with Hunter’s incredible soul and his family.”

Wide receiver Ben Jefferson #27, offensive linemen Isaac Cochran #73 and Ethan Jackman #75, tight end Kyle Patterson #88, long snapper Brendan Bentley #39, guard Kalawai’a Pescaia #98, defensive back CJ Boyd #17, linebacker Elijah Sanders #46 and running back John Lee Eldridge III #24 of the Air Force Falcons celebrate their 42-7 victory over the UNLV Rebels at Allegiant Stadium on October 15, 2022 in Las Vegas, Nevada. (Ethan Miller/Getty Images)

Brown was a management major and a two-year member of the Falcons football squad.

The incident is currently under investigation by the Air Force and the EL Paso County Sheriff’s Office. No specific cause of death has been released.