IDF troops entered the PA-controlled city Kalkilye this morning and imposed a curfew on the residents. Kalkilye is practically adjacent to Kfar Saba, the site of last night’s fatal terrorist bombing at the Arim shopping mall... An IDF force arrested three Tanzim members suspected of Ramallah-area terrorist shootings this afternoon… A large bomb was discovered near Rafiach this afternoon, and an IDF engineering force safely detonated it. Arabs then began firing and throwing grenades to the oft-besieged Tarmit Outpost; no one was hurt, and IDF soldiers returned fire… Arab gunmen opened fire this morning on IDF soldiers manning an outpost in southern Gush Katif, near N’vei Dekalim. There were no reports of injuries; IDF troops returned fire... An IDF Nachal unit arrested a leading Islamic Jihad terrorist near Bethlehem in the early morning hours today...