More than 600 Palestinians and at least 17 Israelis have been killed in the West Bank since October.

When a white van drew up next to the office of the Palestine Customs Police in Tubas, a town in the Israeli-occupied West Bank, Abdel Nasser Sarhan had no reason to be suspicious.

According to Abdel Nasser’s colleagues, the van’s driver got out and greeted him in Arabic.

Seconds later, a man in jeans and a dark T-shirt emerges from the direction of the white van, uniformed Israeli soldiers behind him.

He raises a handgun and shoots Abdel Nasser dead.

In a statement released on the day of the incident, the Israeli army said the shooting occurred in the course of an operation to detain two wanted men.