FORT CAMPBELL, Ky. - Two Fort Campbell-based soldiers have been killed in a combat operation in Afghanistan.

The Department of Defense announced Saturday that 24-year-old Staff Sgt. Scott R. Studenmund of Pasadena, California, and 28-year-old Staff Sgt. Jason A. McDonald of Butler, Georgia, were among five soldiers killed June 9 in Gaza Village, Afghanistan.

Studenmund and McDonald were assigned to the 1st Battalion, 5th Special Forces Group at Fort Campbell, located on the Kentucky-Tennessee state lines.

The department says the incident remains under investigation.

Earlier this month, the department reported the death of another Fort Campbell soldier.

Twenty-year-old Pfc. Matthew H. Walker, of Hillsboro, Missouri, died June 5 in Paktika province, Afghanistan, of wounds he received when his unit was attacked by enemy fire.