Two U.S. Army Sikorsky HH-60 Blackhawks, operated by the 101st Airborne Division, collided near Highway 68, Fort Campbell, Trigg County, Kentucky.
Local news Reports say the incident happened at about 21:35 local time, and as many as nine people may have been killed.
The two HH-60 Black Hawk assault helicopters crashed into each other at about 10 p.m. during a routine training mission in Trigg County, an Army spokeswoman, Nondice L. Thurman, said in a statement early Thursday.
The two HH-60 Blackhawk helicopters, part of the 101st Airborne Division, crashed around 10 p.m. Wednesday in Trigg County, Kentucky, according to the statement posted on Facebook.
“The command is currently focused on caring for the servicemembers and their families,” the statement said.
Kentucky Governor Andy Beshear wrote on Twitter that “fatalities are expected,” adding that police and emergency officials were responding.
The crash is under investigation.
No residential areas are affected by the incident.
The Fort Campbell military base is located a short distance from Trigg County.