World Bulletin/News Desk
Activists in the area put the death count as high as 40 and said dozens were wounded. They said a warplane struck the neighbourhood of Hullok in the northeastern part of the city with a missile, turned around and then fired another one.
The attack came a day after an air strike on a school in Aleppo killed at least 18 people, mainly children.
Despite the continuing civil war, Syrian authorities are preparing for a June presidential election in which President Bashar al-Assad is expected to extend his grip on power.
For months Assad's forces have rained barrel bombs - crude but powerful explosives which are not designed for precision targeting - on rebel held parts of Aleppo despite a U.N. appeal to end the practice.
More than 150,000 people have been killed in three years of conflict that grew out of street protests against Assad's rule.