The Army has identified the two soldiers killed in a helicopter crash in Afghanistan on Wednesday as 33-year-old Chief Warrant Officer 2 David C. Knadle, and 25-year-old Chief Warrant Officer 2 Kirk T. Fuchigami Jr.

Knadle was from Tarrant, Texas; Fuchigami was frome Keaau, Hawaii.

The two were killed in Logar Province, Afghanistan, when their helicopter crashed while they were providing security assistance for troops on the ground, according to a Pentagon release.

Both soldiers were serving with the 1st Battalion, 227th Aviation Regiment, 1st Air Cavalry Brigade, 1st Cavalry Division out of Fort Hood, Texas.

The cause of the crash is still under investigation, though a U.S. Forces-Afghanistan news release on Wednesday said that preliminary reports did not indicate it was caused by enemy fire.