Nine Israeli border policemen were injured in a riot that broke out Tuesday evening in the Shuafat neighborhood of East Jerusalem.

One Border Police officer was stabbed in the back and moderately wounded, and several others were lightly wounded by rocks thrown by rioters in the Arab neighborhood.

A 17-year-old suspect was arrested on suspicion of stabbing the wounded Border Police officer, and another suspect was arrested for public disturbance.

Magen David Adom paramedics arrived at the scene of the incident and treated the wounded officers before evacuating several of them to hospitals in the capital.

The incident reportedly began when undercover officers operating in Shuafat had their cover blown.

A Border Police spokesperson said the troops were on their way out of the neighborhood when “a barrage of rocks was thrown at them, during which a Palestinian stabbed one of them in the back.”