Syrian and Russian jet fighters pounded the city's residential communities where an estimated 250,000 people live, flattening buildings and leaving streets filled with debris and chunks of concrete.
Syria, Russia Bombard Aleppo

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In this photo provided by the Syrian Civil Defense group known as the White Helmets, shows Syrian inspect damaged buildings after airstrikes hit in Aleppo, Sept. 24, 2016.

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In this photo provided by the Syrian Civil Defense group known as the White Helmets, shows members of Civil Defense removing a dead body from under the rubble after airstrikes hit in Aleppo, Sept. 24, 2016.

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A boy rides a bicycle past damaged buildings in the rebel-held Douma neighborhood of Damascus, Sept. 25, 2016.

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A front loader removes debris in a damaged site after airstrikes on the rebel held Tariq al-Bab neighbourhood of Aleppo, Sept. 24, 2016.