Use of chemical weapons in the Syrian civil war

There have been several instances of chemical weapons attacks during the Syrian civil war, beginning in 2012, which were corroborated by national governments, the United Nations (UN), the Organisation for the Prohibition of Chemical Weapons (OPCW), Human Rights Watch (HRW), international organizations and media outlets. Several chemical attacks occurred in different areas of Syria, including Khan al-Assal, Jobar, Saraqib, Ashrafiyat Sahnaya, Kafr Zita, Talmenes, Sarmin and Douma.

Source: Wikipedia — Use of chemical weapons in the Syrian civil war (CC BY-SA 4.0)