when did the chemical attack in syria happen 2017
Khan Shaykhun chemical attack The Khan Shaykhun chemical attack took place on 4 April 2017 on the town of Khan Shaykhun in the Idlib Governorate of Syria. At the time of the attack, the town was under the control of Tahrir al-Sham,[5][6][7][8] previously known as the al-Nusra Front.[9][10]