Security forces fired tear gas canisters on Sunday evening at dozens of Al-Azhar University students supporting the Muslim Brotherhood after they blocked Mostafa al-Nahas Street in Nasr City to denounce the referral of 18 of their colleagues to disciplinary committees for participating in acts of violence.
Students and cause paralysis in traffic in the region, while chased by police in the side streets.
Protests at Al-Azhar University have continued since a pro-Muslim Brotherhood student died at Al-Azhar university on 21 November in clashes.
President of Egypt's Students Union Mohamed Badran described the killing of a student at Al-Azhar University as a "catastrophe," calling for the prosecution of the policemen involved in the incident as well as Al-Azhar University leaders.
"No matter what happens in demonstrations, it should not amount to the killing of a student," Badran said in a statement.
Badran called for decisive measures against perpetrators, adding that students would not stop protests until perpetrators are brought to justice.
Edited translation from Al-Masry Al-Youm
