A Special Forces engineer sergeant has died during a swimming exercise at Fort Campbell, Kentucky. 

SSG Paul Lincoln Olmstead died while participating in the 5th Special Forces Group Maritime Assessment Course, which prepares soldiers for the Combat Diver Qualification Course (CDQC). This is the second death involving a Green Beret during scuba training in the past few months.

SSG Olmstead was conducting a surface swim at the Joe Swing Park Reservoir at Fort Campbell when he went underwater and never resurfaced. A search began for him immediately, according to a press release by the Army. Olmstead was assigned to B Co. 1st Battalion, 19th Special Forces Group.  

“This is an absolute tragedy, especially when we lose someone as capable and promising as Lincoln,” said Colonel Paul Peters, commander of 19th Special Forces Group. “Sometimes we expect this sort of thing in combat, but not during training, which makes this difficult for the unit and especially the family.”