The Israeli army said it would probe an incident in which IDF soldiers apparently sicced a dog on a Palestinian teen in December, after a clip of the attack surfaced Monday.

The clip was uploaded to the Internet by ultra-nationalist politician Michael Ben Ari, a former Knesset member, who praised the action of the soldiers against the “terrorist.”

In the clip, troops from the Oketz canine unit are seen swearing at a Palestinian minor who was caught hurling stones north of the West Bank city of Hebron, and setting a dog upon the boy.

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The dog is seen in the clip biting the boy’s pant leg, and the boy looks visibly frightened.

The teen seen in the clip, Hamza Abu Hashem, 16, is known to security forces from past incidents and was recently given 18 months in jail for terror activities.

“The soldiers are teaching the little terrorist a lesson. Share it! So that every little terrorist who plans to harm our soldiers will learn there is a price [to this],” Ben Ari wrote.

The army responded by saying it had opened an investigation into the incident and steps would be taken to prevent its recurrence.

The incident took place in December 2014 during a confrontation between several dozen Palestinians and soldiers near the settlement of Karmei Tzur in the southern West Bank.

The clash took place in a designated buffer zone between the settlement and surrounding area where entry is permitted.

The Joint (Arab) List responded by issuing a statement where it “strongly condemned the terrible incident.”

“We demand a swift and effective investigation and a trial against the soldiers who attacked the boy, for motives of bullying and racism, and against anyone who had anything to do with it. We demand that those responsible will be brought to justice and see this terrible incident as an expression of the dangerous deterioration brought about by a reality of occupation,” the action said in a statement.

Israeli rights watchdog B’Tselem said in a statement that “those who send soldiers to set dogs against unarmed civilians should not be surprised that the footage leaks to the internet and further undermines the international position of Israel.”