Sarin

Sarin and chlorine used twice in Syria in 2017

Organization for the Prohibition of Chemical Weapons says deadly sarin and chlorine were used in two separate attacks in Syria.

Chemical weapons watchdog confirms sarin nerve gas was used in April 4 attack, stops short of naming the responsible party.

OPCW says it has found that some people in Syria may have been exposed to sarin or a sarin-like gas.

International inspectors have found traces of sarin and VX nerve agent in Syria that had not been declared to the OPCW.

German intelligence has enough evidence to conclude that Assad ordered the chemical attack in Damascus, reports Der Spiegel.

French President Francois Hollande says that the world is obligated to act in response to evidence of sarin being used in Syria.

French Foreign Minister says that tests on chemical samples from Syria make it certain that Sarin was used in the country.

Assad has enough sarin to "eradicate the whole of Damascus," says a former scientist for the Syrian chemical weapons program.

As Syria raises the stakes over its chemical weapons, an Israeli expert says measures are being taken to minimize the threat.