Egyptian police fired teargas at a pro-democracy protest staged by Azhar University students to force them inside the university's campus.
An Anadolu Agency correspondent in the scene reported that policemen chased students who were setting out in a march from the university to the nearby Rabaa Al-Adawiya Square. Some teargas canisters were fired inside the university's campus.
Eyewitnesses told AA that security troops stormed the campus during the chase before withdrawing shortly.
The protest came as part of demonstrations called by the so-called 'Students Against Coup' protest movement.
Earlier in the day, the group called for "a major uprising" in the Azhar University.
"Our revolution against the coup, the military rule, the clerics of the army and the failed university administration is set to start," the group's statement said, in reference to the support shown by the country's top religious authorities to Morsi's ouster.
On Saturday, the first day of study at Al-Azhar University, scores of students staged protests to denounce what they call the "military coup" against elected president Mohamed Morsi.
Chanting anti-military slogans, students flashed the now-iconic bright yellow 'Rabaa' sign in solidarity with hundreds of demonstrators killed in the violent dispersal of pro-Morsi protest camps in Cairo in mid-August.
The Rabaa al-Adawiya Square have since been heavily guarded by police and army troops.
The university's students' union had earlier said that it would stage protests on campus against the July military ouster of Morsi.
The union, which is dominated by the Muslim Brotherhood, said that more than 100 university students had died in pro-democracy protests in addition to the detention of more than 120 students.
Study at Al-Azhar University has been postponed for two weeks for what the university administration described as "unfinished" maintenance work.
But student sources said that the move was taken for "security reasons", given the fact that most students supporters of the Muslim Brotherhood and other Islamist parties.
By Sobhi Megahed
