Two Palestinians died Monday from army gunfire, including a 17-year-old killed during a clash between students and Israeli soldiers in the West Bank city of Hebron. Before the confrontation, the students had blocked streets and thrown stones, Palestinian sources said. An army spokesman confirmed the youth was killed and another injured during the demonstration. Merchants in the city closed their shops to protest the killing. A second Palestinian died Monday from gunshot wounds he received Saturday during a demonstration in the Khan Younis refugee camp in the Gaza Strip, hospital and Palestinian sources said.