A schoolgirl has been caught on camera beating up another girl, armed with a knuckleduster, while her friends egg her on.

一段视频显示一名女学生戴上指节铜套殴打另一名女学生，她的朋友在一旁不断怂恿。

The brutal assault took place in the city of General Cepeda, in the Mexican state of Coahuila.

这场暴力事件发生在墨西哥科阿韦拉州的General Cepeda城。

The video, shared on social media by Marcos Martinez-Soriano, shows a teenage girl, apparently called Gaby, slip a knuckleduster out of her pocket and attack her enemy from behind.

Marcos Martinez-Soriano在社交媒体上分享的这段视频，显示出一个名叫Gaby的少女从口袋中抽出一个指节铜套，从背后袭击另一个女孩。

She drags the girl to the ground by her hair and showers her with punches to the head while wearing the metal knuckleduster.

她拽住女孩的头发将其拖倒在地，在戴金属指套时还不断用拳头殴打其头部。

Gaby also bashes her head against the ground.

Gaby 还摁住她的头部往地上撞。

One of her friends can be heard encouraging her: ’Show the b***h that she can’t mess with you.’

视频录音中还可以听到Gaby的一名同学在旁边不断怂恿她说：“告诉这个小贱人你不是那么好惹的。”

If she messes with me I mess with her,’ replies Gaby after kicking her prone victim.

在踹了受害者几脚后，Gaby答到：“以其人之道还治其人之身。”

And what had the girl done to deserve such a beating?

这个受害女生究竟做了什么惹怒Gaby的事呢？

She was accused of spreading gossip about Gaby.

她被指控在背后说Gaby的坏话。

It is not known whether the attack took place in a school but nobody goes to the aid of the girl, who lies on the floor, holding her hands in front of her face and trying to deflect the hefty blows to her face and head.

这次暴力是否发生在校园内依然尚未知晓，但是边上没有一个人向这名躺在地上的女孩伸出援助之手。她用手挡住自己的脸，尽量保护自己的脸部和头部，抵挡攻击。

At one point she begs: ’Let me go.’

视频中她哀求道：“放了我吧。”

But Gaby responds to her pleas by bashing her head on the ground.

但是Gaby对此根本不理睬，依旧摁住她的脑袋，使劲往地上撞。

The beating only stops when an adult approaches and Gaby slopes off.

当Gaby看到一个成年人走过来时，停止了殴打行为然后逃走。

Coahuila’s Secretary of Public Education said their Department of Legal Matters was trying to locate those implicated in the incident.

科阿韦拉州的公共教育部部长称，该州的法律部正在调查与此事件相关的一切事宜。

Coahuila is a stronghold of Los Zetas, one of the most violent cartels involved in the Mexican drugs war.

科阿韦拉州是洛斯哲塔斯集团的重要聚集地，该集团是墨西哥贩毒集团“卡特尔”中的军事力量。

They have been at war with their former employers, the Gulf Cartel, and violence is endemic in the state.

他们与自己上一任雇主海湾卡特尔一直处于交战状态，暴力事件在该州已是屡见不鲜。