$ 0 0 Smoke and fire rises from Aleppo's central prison following a reported air strike by Syrian government forces during fighting with Syrian rebels on February 6, 2014. Syrian citizens inspect an unexploded barrel of explosives which was dropped from a Syrianforces helicopter, on a street in Aleppo, Syria.Airstrikes on the city over the past week alone have killed at least 246 people, according to activists. That pace rivals a two-week stretch in the second half of December when more than 500 people were killed in Aleppo airstrikes. For nearly two months, the Syrian government has conducted an intense air campaign on opposition-held districts of the northern city of Aleppo. An anti-Bashar Assad activist group, which has been authenticated based on its contents and other AP reporting, Syrian rescue workers dig out the lifeless body of a young child from the rubble of a building damaged by Syrian government forces attacks, in Aleppo, Syria. A Free Syrian Army fighter prepares to fire mortar shells in Aleppo's Karm al-Jabal district.