CAIRO - One man was killed and 15 people were injured in an attack on a protest by hundreds of supporters of ousted Islamist President Mohamed Morsi near Cairo University early Tuesday morning, state-run news website said.Al-Ahram Online said police fired tear gas to quell the violence and several cars in the area were smashed or set on fire.Police sources said hundreds of Pro-Morsi supporters clashed with local residents, street sellers and others near Cairo University's main campus in Giza province, south of Cairo. They said gunshots were fired and stones were thrown during the incident.The Muslim Brotherhood said on the Facebook page of its Freedom and Justice Party (FJP), which Morsi headed before he was elected president in June 2012, that five were killed in Tuesday's clashes."Leaders of the military coup continue to terrorize the peaceful protesters in Egypt," the FJP said in a statement in English.Another person was killed and around 20 were injured on Monday night in clashes in central Cairo. Supporters and opponents of Morsi hurled stones at each other as security forces fired tear gas to try to disperse them, witnesses said.Blood stains and broken glass littered the pavement between the dueling sides, and injured people were whisked away from the clashes on motorbikes.State television said they had arrested seven Morsi supporters and confiscated two guns from them. A Reuters correspondent also saw two anti-Morsi activists holding homemade pistols, with the two sides shooting fireworks at each other. A few hundred protesters backing Morsi's Muslim Brotherhood movement appeared to be trying to march on Tahrir Square, the epicenter of mass demonstrations which led Egypt's army to oust the elected Islamist leader on July 3."They fired on us with birdshot and pistols. They tried to overrun the square." said Tarik Sabir, 41, an employee in a petrol company, who was wounded in the thigh by birdshot.Around 100 people have been killed in violence since the downfall of Morsi earlier this month -- most of them Muslim Brotherhood supporters.The Brotherhood accuses the army of orchestrating a coup that has exposed deep political divisions in the Arab world's most populous and influential nation.FJP said the ministers of defense and interior, whom it called "the leaders of the coup," would be held responsible for any future attempts to evacuate the Brotherhood protest areas.Morsi's supporters are maintaining a round-the-clock vigil, now in its third week, in a Cairo suburb. They say they will continue until Morsi, held by the army in an unknown location since his ouster, is reinstated.Some residents close to the Brotherhood's main protest area in Nasr City have filed a complaint with the public prosecutor asking for the removal of the protesters, who they say are disturbing their lives. An informed security source said the case is expected to be taken to a court and ruled upon soon "to give the army a legal basis to end the protests."