A Palestinian police officer was killed overnight Monday during an arrest raid in the Balata refugee camp near the West Bank City of Nablus.

The officer was shot in the head in clashes between Palestinian security forces and armed operatives in the camp, according to Palestinian news agency Ma’an.

According to the report, Palestinian security forces came under fire as they attempted to arrest alleged criminal Ahmed al-Zabour, also known as Ahmed Abu Hamada, accused of murder and other crimes, who topped the Palestinian Authority’s most-wanted list.

Nablus governor Akram Rajoub said that police officer Hassan Ali Abu al-Haj was shot in the head and killed and two other officers were injured by gunfire.

Al-Zabour was reportedly hit twice by gunfire and evacuated to a hospital in Nablus in serious condition.

Balata is the largest refugee camp in the West Bank.