(CNN) — An active-duty Army sergeant is accused of shooting and wounding five of his fellow soldiers at Fort Stewart military base in Georgia on Wednesday, the latest act of violence on a US military base that raises questions about the safety of American servicemembers at facilities where they train, work and live.

28-year-old Sgt. Quornelius Samentrio Radford, an officer who worked in automated logistics, opened fire on coworkers with a personal handgun late in the morning, base officials said. Nearby soldiers “immediately and without hesitation tackled” and subdued him until he was arrested, said Brig. Gen. John Lubas, the commanding general of the 3rd Infantry Division, which is based at Fort Stewart.

Three of the soldiers underwent surgery, but all five are stable and expected to

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