Eleven cartridges were found on the road from bullets fired from a Palestinian ambush at an armored Israeli bus driving Sunday near Ein Yabrud, northeast of Ramallah. An earlier Palestinian shooting attack took place on another armored bus on the road between Ofra and Shilo further south. A window was smashed. There were no casualties. An Israeli soldier was slightly injured by rock-throwing rioters at the Gush Etzion junction near Hebron.