Rockets have reportedly slammed into a government-held district in Syria’s northern city of Aleppo, killing 9 people.

According to the Associated Press, the state-run SANA news agency said on Monday, May 5, that the overnight attack occurred in Aleppo's residential neighborhood of Ashrafiyeh.

There was no claim of responsibility for the attack. Rebels fighting to oust President Bashar Assad from power have frequently fired mortars and rockets into cities that are under control of his forces.

Aleppo is Syria's largest city and it has been divided between government- and opposition-held areas since rebels launched an offensive there in mid-2012, capturing whole neighborhoods and large parts of territory outside the city and along the border with Turkey.

In the past months, government forces have been relentlessly shelling Aleppo's opposition districts with aircraft and artillery.