A 26-year-old reservist died Saturday after he collapsed at Joint Base Charleston during his Air Force physical fitness test.

Staff Sgt. Richard Spofford of North Charleston was taken to Trident Medical Center where he died, according to Maj. Wayne Capps, chief of public affairs for the base.

Spofford had been a member of the 315th Airlift Wing since January, 2013, "The men and women of Joint Base Charleston are deeply saddened by the loss of Sergeant Spofford," said Col. Scott Sauter, commander of the 315th Airlift Wing, said in a statement released to the press. "Richard was an integral part of the 315th family. Our thoughts and prayers are with Richard's family, friends and co-workers during this difficult time."