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Wed Feb 5, 2014 7:40am EST

1 of 24. A man pulls a trolley containing belongings as a woman walks behind at the Karaj al-Hajez crossing, a passageway separating Aleppo's rebel-controlled Bustan al-Qasr area, and regime-controlled Al-Masharqa neighborhood, February 4, 2014. Reuters photographs showed streets packed with Aleppo residents carrying large packs as they fled the home-made barrel bombs - oil drums or cylinders packed with explosives and metal fragments. Barrel bombs, cheap and easy to construct and usually dropped from helicopters, often kill dozens at a time. Activists say they are being used to push people from rebel-held areas into state-controlled parts of the city.

Credit: Reuters/Ammar Abdullah

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