The remains of a Pennsylvania soldier previously listed by the Army as “duty status whereabouts unknown” have been positively identified by the Armed Forces Medical Examiner, the Defense Department announced Tuesday in a press release.

Staff Sgt. William D. Vile, 27, of Philadelphia, who was assigned to a military transition team in Afghanistan, died of wounds suffered in an attack May 1 when insurgents attacked his unit using direct fire and rocket-propelled grenades, officials said.

The attack took place in the village of Nishagam, Konar province.

Sgt. James D. Pirtle, 21, of Colorado Springs, Colo., and Spc. Ryan C. King, 22, of Dallas, Ga. — both were assigned to Special Troops Battalion, 3rd Brigade Combat Team, 1st Infantry Division, of Fort Hood, Texas — also died in the attack.

Vile was assigned to...