At least 52 people are believed to have been killed and dozens more hurt in an explosion at the University of Aleppo in Syria’s second largest city.
The death toll was given by the Syrian Observatory for Human Rights.
State television said there had been one explosion at the university, which lies in the government-controlled area, describing it as a “terrorist attack”.
A second blast is reported to have been caused by a burning car.
But it seems clear this attack was designed to cause the maximum amount of chaos as it coincides with the first day of exams.
Rebels have used car bombs and suicide attacks in battling troops loyal to President Bashar al Assad and attacking government-controlled areas.
Fighting between rebels and government forces has reached a stalemate in Aleppo and left the city divided. Rebels claim they control more than half the province.