Two soldiers were killed in a helicopter crash at a United States army base. The cause for the crash is also now under investigation. No other casualties were reported.
Fort Campbell Fire and Emergency services responded to the scene after the crash around 9:50pm.
The soldiers' names have not been released before their families are notified of their deaths.
'This is a day of sadness for Fort Campbell and the 101st Airborne, ' Brigadier General Todd Royar said.
2 101st soldiers killed in helicopter crash at Fort Campbell
The incident followed another fatal military aviation crash this week. "Our thoughts and prayers are with the people during this complicated moment". A day later, seven airmen were killed when their HH-60 Pave Hawk crashed in western Iraq during a routine transit flight.
2 US troopers died in a helicopter accident during education at Fort Campbell, Kentucky, the Army claimed on Saturday, indicating the fourth largest USA army aircraft mishap at less than per week.
A Maritime jet crashed in Djibouti on Tuesday. They were training in a AH-64E Apache helicopter.
On Wednesday near the Nellis Air Force Base in Nevada an Air Force Thunderbird pilot was killed after his F-16 aircraft crashed.