A group of eight masked men felled some 15 olive trees belonging to Palestinians and damaged others, some of them ancient, military sources said on Tuesday. Residents of the village Bourin, near the Jewish settlement Yitzhar in Samaria, alerted the IDF and police who sped to the spot, but the perpetrators, suspected as being settlers, fled the scene. Earlier on Tuesday, Palestinian Authority parliament member Walid Assef was lightly wounded and his car was damaged by stones allegedly hurled by settlers near the Gilad Farm outpost in Samaria. A member of the Civil Administration at the scene aided the parliamentarian and recommended he file a complaint with the police. The stone-throwers evaded attempts to apprehend them. On Monday night, settlers continued to riot over outpost demolitions, hurling stones at IDF soldiers and Palestinian cars in the West Bank. An IDF soldier was lightly wounded when masked settlers stoned troops near Kedumim, while four settlers were arrested on suspicion of throwing stones at Palestinian vehicles near the Yitzhar junction. On Monday, Settlers burned olive trees, stoned Palestinian vehicles, blocked West Bank roads and allegedly assaulted Palestinians in direct response to the Civil Administration's destruction of scattered structures in three outposts earlier in the day. Although all three outposts, Adei Ad, Nofei Yarden and Mitzpe Danny, were in the area of the Binyamin Regional Council, settlers and right-wing activists reacted throughout the West Bank. Tovah Lazaroff and Yaakov Lappin contributed to this report.