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In new round of air raids, Syrian government planes pound Aleppo, killing at least 15

  • In this Monday, Dec. 23, 2013 citizen journalism image provided by Aleppo Media Center AMC, which has been authenticated based on its contents and other AP reporting, Syrians inspect damages buildings following a Syrian government airstrike in Aleppo, Syria. Government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking the northern city of Aleppo and a town on the Turkish border in raids that left an estimated 45 people dead, activists said. (AP Photo/Aleppo Media Center AMC)

    In this Monday, Dec. 23, 2013 citizen journalism image provided by Aleppo Media Center AMC, which has been authenticated based on its contents and other AP reporting, Syrians inspect damages buildings following a Syrian government airstrike in Aleppo, Syria. Government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking the northern city of Aleppo and a town on the Turkish border in raids that left an estimated 45 people dead, activists said. (AP Photo/Aleppo Media Center AMC)  (The Associated Press)

  • In this Monday, Dec. 23, 2013 citizen journalism image provided by Aleppo Media Center AMC, which has been authenticated based on its contents and other AP reporting, Syrians inspect damages buildings following a Syrian government airstrike in Aleppo, Syria. Government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking the northern city of Aleppo and a town on the Turkish border in raids that left an estimated 45 people dead, activists said. (AP Photo/Aleppo Media Center AMC)

    In this Monday, Dec. 23, 2013 citizen journalism image provided by Aleppo Media Center AMC, which has been authenticated based on its contents and other AP reporting, Syrians inspect damages buildings following a Syrian government airstrike in Aleppo, Syria. Government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking the northern city of Aleppo and a town on the Turkish border in raids that left an estimated 45 people dead, activists said. (AP Photo/Aleppo Media Center AMC)  (The Associated Press)

  • This citizen journalism image provided by Aleppo Media Center AMC which has been authenticated based on its contents and other AP reporting, a Syrian man mourns as he carries the body of a child who was killed following a Syrian government airstrike at the neighborhood of Marjeh in the northern city of Aleppo, Syria, Monday, Dec. 23, 2013. Syrian government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking one of the main border towns near Turkey and killing several people, said activists. (AP Photo/Aleppo Media Center AMC)

    This citizen journalism image provided by Aleppo Media Center AMC which has been authenticated based on its contents and other AP reporting, a Syrian man mourns as he carries the body of a child who was killed following a Syrian government airstrike at the neighborhood of Marjeh in the northern city of Aleppo, Syria, Monday, Dec. 23, 2013. Syrian government forces widened a bombing campaign in rebel-held areas of northern Syria on Monday, striking one of the main border towns near Turkey and killing several people, said activists. (AP Photo/Aleppo Media Center AMC)  (The Associated Press)

Activists say a new round of Syrian government airstrikes on the northern city of Aleppo has killed at least 15 people, including three children.

Tuesday's air raids extend the intensified bombing campaign by President Bashar Assad's air force on the embattled city into its tenth day. Activists say more than 360 people have been killed since the aerial assault began on Dec. 15.

The Britain-based Syrian Observatory for Human Rights says Tuesday's airstrikes hit the rebel-held Sukkari neighborhood, killing at least 15 there.

Another activist group, the Aleppo Media Center, put the death toll at 33. It said 150 people were wounded.

Disparate death tolls are common in the chaotic aftermath of such attacks.