Organisation for the Prohibition of Chemical Weapons
The attack in February left 11 people in need of emergency treatment.
The U.S. also said Russians or Syrians may have tampered with evidence on the ground. Moscow denied the charge.
They should make clear to those contemplating their use that the international community can track them down and prosecute them.
The attack killed dozens of people, including children.
According to Human Rights Watch, the attacks were part of the overall military strategy to retake the city.
Syria Destroyed All Of Its Declared Chemical Weapons Production And Mixing Facilities, Watchdog Says
BEIRUT, Oct 31 (Reuters) - Syria has destroyed all of its declared chemical weapons production and mixing facilities, meeting