KANSAS CITY, Kan. (AP) — A jail guard allegedly beat up a handcuffed inmate whose arm was being held by another deputy, according to an affidavit that led to criminal charges against the two Wyandotte County Sheriff's Office employees.

Sgt. David Toland and Deputy Marcus Johnson were charged last month, but details of the September jail incident were not made public until The Kansas City Star obtained the criminal affidavit. Toland is accused of punching the prisoner in the face and slamming the inmate's head against an elevator door.

Both face one count of misdemeanor mistreatment of a confin...