(WSYR-TV/CNN) -- Secretary of State John Kerry revealed Sunday that new tests show Sarin nerve gas was used in the August 21st attack in Syria that killed more than 1,400 people.
Kerry said blood and hair samples from eastern Damascus, Syria, have "tested positive for signatures of sarin" gas.According to CNN
, the samples were obtained through an "appropriate chain of custody," giving no indication the results came from the United Nations chemical weapons inspectors.
Sarin is a clear, tasteless and odorless nerve agent and is one of the most toxic chemical weapons.
"We know that the regime ordered this attack, we know they prepared for it," Kerry said. "We know where the rockets came from. We know where they landed. We know the damage that was done afterwards. We've seen the horrific scenes all over the social media, and we have evidence of it in other ways, and we know that the regime tried to cover up afterwards, so the case is really an overwhelming case."
Top U.S. officials have said there's no doubt that the Syrian government was behind the attack, while Syrian officials have denied responsibility and blamed jihadists fighting with the rebels.