A video published on the internet showed ambulances across the debris of damaged buildings and wrecked cars . Syrian Rights Observer Group based in London, said the attack occurred in the district of Halak , Thursday, May 1.
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While the number of casualties , according to the Center for Media Aleppo , reaching 40 lives and damaged two residential buildings .
The attack comes a day after government warplanes struck a school in the south and Aleppo killed 18 people , including 10 children .
The UN agency for children and education , UNICEF , had expressed criticism of the two attacks in Aleppo , which is referred to as indiscriminate attacks over the school and civilian targets .
" These attacks seem to escalate , did not appreciate all the calls that have been done to stop this crazy cycle of violence and to avoid violations of international law , " UNICEF said in a statement as written .
Aleppo became a fierce battlefield between government forces and rebel groups , and are often targeted by government air raid .