The U.S. State Department confirmed the death of a U.S citizen in the West Bank, offering its condolences to the family.

It acknowledged the Israeli military’s statement that the killing was part of a counterterrorism operation and that the military was investigating.

The weekend killing of a Palestinian American teenager by Israeli forces in the occupied West Bank has sparked an outcry from relatives and community members in the Palestinian territory as well as the United States.

The family of 14-year-old Amir Rabee said he was picking olives with two friends, also U.S. citizens, on Sunday when Israeli forces fired at them.

The Israeli military said it opened fire toward three people who were endangering drivers by hurling rocks at a highway in the village of Turmus Ayya, killing one person and injuring the other two.