UPDATE: Fort Polk has released the name of the soldier killed in an accident involving a helicopter earlier this week.

Officials identified the soldier as Major Trevor Joseph from Collierville, Tennessee.

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FORT POLK - Military officials say that one person is dead and three others were injured in an early morning helicopter crash.

Fort officials say an Army helicopter crashed just after 12 a.m. Thursday at the JRTC and Fort Polk training area. A spokesperson told ABC News that the helicopter was a UH-60 Black Hawk medical evacuation unit. 

The helicopter was en route to pick up another solider with minor injuries at the time. There were four crew members on board when the helicopter crashed. Three crew members sustained non-life threatening injuries, according to the spokesperson. 

The names of the those on board have not been released at this time. Fort officials say the cause of the crash is under investigation.

Gov. John Edwards released the following statement.

Our hearts are heavy after learning of this morning’s tragic crash and the loss of one soldier who made the ultimate sacrifice in service to our country and our state. We can never fully repay these the soldiers for their brave service.

The men and women of Fort Polk play a critical role in the readiness of our armed forces, and we are praying for their entire community. Donna and I ask the people of Louisiana to please join their prayers to ours for the deceased soldier, those injured and their families during this difficult time.