The Defense Department on Sunday released the name of the soldier killed this week in a helicopter crash in Afghanistan.

Chief Warrant Officer 2 Jacob Sims, 36, died Friday in Logar province, Afghanistan, from wounds sustained from the crash, according to a statement from DoD.

Sims, who was supporting Operation Freedom’s Sentinel, was assigned to 4th Battalion, 160th Special Operations Aviation Regiment. He was stationed at Joint Base Lewis-McChord, Washington.

Six other service members were injured in the crash.

The military has not released much information about the crash except to say that the helicopter was not downed by enemy fire. The incident is under investigation.

Sims, who was born in Oklahoma, joined the Army in August 1999, according to information from U.S. Army Special Operations Command.

After completing initial entry training, Sims was assigned to Fort Bragg, North Carolina, as a combat engineer. He later completed Warrant Officer Flight Training and was assigned Fort Wainwright, Alaska, as a UH-60 Black Hawk helicopter pilot.

Sims then volunteered to serve in the 160th Special Operations Aviation Regiment, graduating from Officer Green Platoon in April 2014. Sims was assigned to the regiment’s A Company, 4th Battalion, on Joint Base Lewis-McChord, where he served as a MH-47G pilot-in-command and company aviation safety officer.

Sims deployed in support of Operation Joint Guardian in Kosovo, and deployed numerous times to Iraq and Afghanistan.

“On behalf of the 160th Special Operations Aviation Regiment, I would like to extend my most sincere condolences to the family of CW2 Jacob Sims,” said Col. Philip Ryan, commander of the 160th SOAR, in a statement. “Jacob lived by a creed that few understand and even fewer embody. He will not be forgotten and his legacy will endure through his family, friends, and fellow Night Stalkers.”