France wants a reaction with "force" if a massacre in Syria involving chemical weapons is confirmed.
1,300 people are now said to have been killed in an attack on the outskirts of Damascus yesterday - reports on the ground suggest Chemical weapons were used.
The government has strongly denied allegations that it was behind the assault.
French Foreign Minister Laurent Fabius said this morning there must be a reaction with force if the chemical attack is confirmed.
However he admitted it would be "impossible" for France to send ground troops.
Both Amnesty International and Human Rights Watch have called on the Syrian government to give access to UN weapons inspectors to the sites near Damascus.
Harlan Ullman is a senior advisor at the Atlantic Council in Washington - he says the fact that people died is the injustice, not the manner in which they died: