Cairo - Police fired tear gas on Monday in clashes with Islamist students of Cairo's Al-Azhar University who pelted stones and torched vehicles during a demonstration backing ousted president Mohammed Morsi, officials said.
Violence in and around the university's dormitory erupted when a few hundred students began protesting and poured onto nearby streets, security officials said.
Four civilian and two police cars were set ablaze by protesters who also threw rocks at police who then fired tear gas to break up the demonstration, they added.
A security official said students cut off the main road in front of the university and disrupted traffic, after which the police intervened.
The interior ministry said police fired tear gas to disperse the students and push them back into their dorms.
Another security official said 58 "rioting students" had been arrested.
In October, a student was killed at Al-Azhar during a similar protest.
Universities have increasingly become a key battleground for students who oppose the military's overthrow of Morsi in July.
More than 1 000 people have been killed and thousands arrested in a police crackdown on Morsi's Islamist supporters since his ouster.