Egyptian students loyal to the Muslim Brotherhood set fire to two building amid clashes with police at the Cairo campus of Al-Azhar University, state television reported.
A student activist said a supporter of the Brotherhood had been killed - a claim denied by a security source.
State-run newspaper Al-Ahram said the clashes began when security forces fired teargas to disperse pro-Brotherhood students who were preventing their classmates from entering university buildings to take exams. Protesters threw rocks at police and set tyres on fire to counter the teargas.
More top news
Michael Coe, who was an associate of convicted hate preacher Anjem Choudary, called the girl a 'whore' before assaulting the schoolboy.
Donald Trump will be hoping for the some lessons on how Nigel Farage and Co swept the Leave campaign out in front, says Penny Marshall.
A new planet which could contain life has been discovered close enough to Earth to be reached by future space missions.