Syria Crisis: ‘Deadly Aleppo Strike’ as UN Envoy Starts Job
A bomb also exploded near a roundabout in the Jaramana district of Damascus.
The new international envoy to Syria, Lakhdar Brahimi, said he viewed his new mission as near-impossible.
He is expected to visit Syria and meet President Bashar al-Assad on Saturday.
In Aleppo, human rights groups said several women and children were among the 25 victims when a building was hit in the town of al-Bab.
Al-Bab, just to the North-East of Aleppo, appears to be largely in rebel hands, and has been heavily pounded by government forces in recent weeks.
Increasingly, as the conflict deepens, the regime has made fuller use of its air power – attack helicopters and fixed-wing jets – to support its ground forces as they try to root out the lightly-armed rebels from towns, cities and villages all over the country.