The military aircraft dropped at least one "barrel bomb" crude weapons made from canisters laden with explosives and hurled from helicopters to strike the Qabr al-Inglizi area in the northern Syrian province of Aleppo today, reported the activist collective, the Aleppo Media Center, and the Britain-based Syrian Observatory for Human Rights.
The Observatory said at least 13 were killed, including two children and a woman, and that the death toll was likely to rise because more people were buried under the rubble.
The video appeared genuine and corresponded with The Associated Press reporting of the event. "Bashar you dog! You oppressor! May this happen to your children!" said one man in the video, referring to President Bashar Assad. "These are children, not terrorists!" he said, standing on a wall and gesticulating with his hands.
The Syrian military widely uses so-called "barrel bombs" to strike at rebel-held areas. They have been widely criticised because they cannot be precisely targeted, and are believed to have killed thousands of civilians, particularly in northern Syria.
Syria's war, now well into its fourth year, began as an uprising against Assad's continued rule. It has since become a complicated civil war, and activists estimate some 200,000 people have been killed.