AZAZ, Syria 

One civilian was killed and six others were injured in a bomb blast Saturday in Syria's northern city of Azaz, according to local sources.

A bomb-laden motorbike exploded in the city center, killing one person and injuring six others, said the sources, who spoke anonymously due to security concerns.

The injured people were referred to nearby hospitals.

No group has yet claimed responsibility for the attack.

Syria has only just begun to emerge from a devastating conflict that began in 2011 when the Bashar al-Assad regime cracked down on demonstrators with unexpected ferocity.