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
Paul Golding was arrested by police in Belfast earlier on Thursday while he was at court supporting deputy leader Jayda Fransen.
One in four people believe recent sexual harassment publicity will affect their work Christmas parties, an ITV News/ComRes poll suggests.
A major error in paying disability and sickness benefits to 75,000 people is to be put right - at a potential cost of up to £500 million.