LOUISVILLE, Ky. (WDRB) -- It is definitely unusual punishment for an elementary student, but one group says it's also cruel: handcuffing an 8-year-old boy. 

 A video taken by a staff member at an elementary school in Covington, Kentucky, shows a Kenton County Sheriff's deputy handcuffing a third grader.

"You can do what we asked you to, or you can suffer the consequences," the deputy says in the video. 

"Ow! That hurts!" the child replies, crying.

"Now sit down in that chair like I asked you to," the deputy says, as the child continues to cry.

The ACLU filed suit against the deputy and sheriff's department, claiming the officer didn't have adequate training to deal with students who have disabilities. The suit says the boy suffers from a history of trauma and ADHD. 

WDRB talked with the sheriff's department, which says it has not yet received the suit, so it cannot yet comment. 

We also contacted the school district, which says it's aware of the incident and cooperating with the child's family's legal counsel -- and that resource officers are "not called upon to punish or discipline students," but to simply maintain safety.

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