Syria chemical attack: Everything you need to know

The attack on led to at least 70 deaths and more than 100 people requiring medical attention

The April 4, 2017 chemical attack on the rebel-held town of Khan Sheikhoun in Syria led to at least 70 deaths and more than 100 people requiring medical attention, prompting an outcry from the international community. It led to the April 7 US bombing of the Shayrat air base.

It is alleged that sarin was used in the Khan Sheikhoun attack. This particular chemical became famous in 1995 with the Tokyo subway attack, launched by members of the cult movement Aum Shinrikyo.

Was it sarin?

Sarin is an