The names of the Marines, who are with Camp Lejeune, and the names of the sailors were not immediately made available, nor was their condition.
Two of the wounded received transport to UNC Hospitals in Chapel Hill, while the remaining eight were being treated at Womack Army Medical Center, according to Womack spokeswoman Shannon Lynch.
The units were firing 155mm ammunition, which can be associated with loud explosions and reverberations upon detonation. Fort Bragg is the closest military training area able to accept the 155mm weapons systems.
Price said firing will cease until officials deem it safe to continue, but it's uncertain when that might be.
The explosion took place around 8 p.m. and remains under investigation.
In June 2010, a contractor died and a second contractor and a soldier were injured during a Fort Bragg training exercise. In that incident, soldiers on Range 77 were taking part in tactics to help prepare units for overseas missions.