Updated

Egyptian police have fired tear gas in an attempt to disperse supporters of the country's ousted Islamist president protesting at an Islamic university in Cairo.

A security official says students at Al-Azhar University hurled rocks Sunday at the police and tried to block traffic on a major thoroughfare next to the campus in eastern Cairo. The official spoke on condition of anonymity because he was not authorized to speak to reporters.

TV footage showed flames raging at the gates of the university dorms.

Al-Azhar University students have staged persistent protests against Egypt's military-backed government.

Last month, 12 students from the same university were sentenced to 17 years and fined for participating in protests and clashes on the campus. Another 21 students from Al-Azhar were referred to trial Sunday.