(FOX NEWS) — U.S. military sources tell Fox News the American soldier accused of killing 16 Afghan civilians last weekend is Staff Sgt. Robert Bales, who is being flown to a military prison at Fort Leavenworth in Kansas.

Military officials have declined to identify the suspect publicly, insisting that it is usual procedure to keep a suspect’s identity secret until he is officially charged. They have maintained that stance even after a hearing for the detained soldier Tuesday found probable cause to continue holding him, and he was sent from Afghanistan to a detention facility in Kuwait.

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