Syrian state television and an activist group say opposition fighters have shelled a government-held neighborhood in the northern city of Aleppo, killing at least three people and wounding dozens.

The TV report said the shelling of the Suleimaniyeh neighborhood on Saturday morning killed six, wounded more than 50 and damaged several building.

The Britain-based Syrian Observatory for Human Rights, which has a network of activists around the country, said the shelling killed three and wounded "tens."

Syrian rebels have shelled residential areas in government-held parts of the contested city in the past, killing hundreds of people in the attacks.

Aleppo, Syria's largest city and its former commercial capital, became a key front in the country's civil war after rebels launched an offensive there in July 2012.