A Border Police fighter was lightly to moderately wounded in northern Jenin on Wednesday during a joint operation conducted by the army and Border Police. He was treated at the scene and then transported to Ha'emek Hospital in Afula. During the arrest operation, IDF units surrounded a house where wanted Palestinians, including senior Hamas operative Zaid Khalil Mussa, 28, were taking refuge. The gunmen inside the compound opened fire at the troops, wounding the fighter. Army soldiers returned fire, killing Mussa, who was reportedly responsible for the death of elite forces soldier Yonathan Evron in October. Also on Wednesday, Palestinians opened fire on Paratroopers in Nablus; no casualties were reported. These attacks came one day after a border policeman was moderately wounded in his legs in Jenin during an arrest raid. The initial investigation of Tuesday's incident revealed that the border policeman may have been wounded accidentally by friendly fire.