This citizen journalism image provided by the Local Committee of Arbeen which has been authenticated based on its contents and other AP reporting, shows Syrian citizens mourning over the dead bodies of Syrian men after an alleged poisonous gas attack fired by regime forces, according to activists in Arbeen town, Damascus, Syria, Wednesday, Aug. 21, 2013. Syrian regime forces fired intense artillery and rocket barrages Wednesday on the eastern suburbs of the capital Damascus, in what two pro-opposition groups claimed was a "poisonous gas" attack that killed dozens of people. (AP Photo/Local Committee of Arbeen)
WASHINGTON (AP) -- Secretary of State John Kerry says chemical weapons were used in Syria and is accusing President Bashar Assad of destroying evidence.
Ratcheting up criticism of Syria's alleged chemical weapons use, Kerry called last week's attack a "moral obscenity" that should shock the conscience of the world.
He says the U.S. has additional information about the attack and will make it public in the days ahead.
Kerry says shelling the affected area afterward was not the action of a government trying to cooperate with U.N. investigators trying to assess what happened.
The alleged chemical weapons attack on Aug. 21 that killed hundreds has moved the U.S. closer to military action against Syria than at any point during the bloody civil war.
Syrian President Bashar Assad has denied launching a chemical attack.