FORT INDIANTOWN GAP, Pa. (WHTM) — The soldier killed in an accident at Fort Indiantown Gap on Saturday has been identified.

According to the U.S. Army, Spc. Mackenzie L. Shay, 20 of New Castle, was killed in an accident involving two military vehicles. Shay was a 92F, Army Petroleum Supply Specialist, assigned to the 28th Infantry Division’s Company G, 128th Brigade Support Battalion.

Three others were transported to Hershey Medical Center with non-life-threatening injuries.

“Our thoughts and prayers are with Specialist Mackenzie Shay’s family, friends and colleagues after this tragic accident,” said Army Maj. Gen. Mark J. Schindler, the Adjutant General of the Pennsylvania National Guard. “Our priority right now is taking care of the family and soldiers, ensuring they have all the resources they need during this critical time.”

In a release on Monday, Oct. 24, Gov. Tom Wolf’s office said United States and commonwealth flags at the Capitol Complex, all commonwealth facilities, and all public buildings and grounds in the state should fly at half-staff to honor Shay.

The flags should be lowered to half-staff until Shay’s interment, the date for which has not yet been set, the governor’s office said.

The accident is currently under investigation.