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The death toll from two large explosions that tore through one of Syria's biggest universities on the first day of student exams has risen to at least 83 people, a monitoring group has said.
The UK-based Syrian Observatory for Human Rights said dozens more were injured in the blasts at the University of Aleppo, but the group said it could not identify their source.
Some activists in Aleppo claimed a Government attack caused the explosions, while state television accused "terrorists" - a term often use to describe the rebel fighters - of firing two rockets at the school.
Footage from the scene of the two explosions at the University of Aleppo shows a six-storey building with all of its windows and parts of its facade missing. Fires can be seen in some of the rooms.
The twisted remains of at least 15 vehicles can be seen and debris covers the ground.
The death toll from two large explosions at the University of Aleppo has risen to 52, according to the UK-based Syrian Observatory for Human Rights.
An explosion has rocked the University of Aleppo in Syria's second largest city, Reuters reports citing state TV.
Fighting between rebels and government forces has reached a stalemate in Aleppo and left the city divided. Rebels say they control more than half the province.
The university lies in government-controlled territory.
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While Assad's opposition blame his troops for the deadly university bombing, the government says extremist group al Nusra is responsible.
Establishing the facts - who bombed what and how many people died - is almost impossible in a country where everyone mistrusts journalists.