Arab and Jewish students briefly scuffled Tuesday at The Hebrew University of Jerusalem, during a small protest against Israel's Gaza offensive, police said. There were no injuries reported in the incident at the university's Mount Scopus campus, and the melee was broken up by campus security guards even before police arrived on the scene, Jerusalem Police spokesman Shmuel Ben-Ruby said. The early afternoon clash erupted during the anti-Israel protest, held by dozens of Arab and a few leftist Jewish students at the main entrance to the campus. During the gathering, a Palestinian flag was unfurled. The demonstrators were confronted by other students who were offended by the protest, and a scuffle ensued. But within 20 minutes or so, the students had dispersed, and were nearly outnumbered by forces who had rushed to the scene. The demonstration was the second such protest at held on the campus in the past week. The previous protest, which was larger, ended without incident. A separate demonstration Tuesday at Haifa University was forcibly broken up because it was not approved by the university. Ten protesters were arrested, including the chair of the Arab student union. The Arab student group said in response that the university was engaging in intimidation. A demonstration outside the Prime Minister's residence in Jerusalem, organized by the Israeli Arab human rights organization Adallah, turned violent when a protester pelted a motorist with a stone after he shouted insults at them, police said. The stone missed the driver and hit a police officer in the head. The protester was arrested, while the police officer was treated by Magen David Adom medics, police said.