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
Mosquitos likely infected three men and a woman within a square mile of Miami, according to Florida's Governor.
The brother of Victoria Wood has launched an appeal to raise £20,000 for a statue in the late comedian's honour.
Health professionals say that 16 people have been struck by the same strain as E.coli after eating blue cheese.