Sarin gas attack in Syria has become a key draw for jihadist fighters who want to battle Bashar al-Assad's regime in the country's civil war, a French anti-terrorism judge said.
Marc Trevidic pointed to exponential growth in the number of French residents or citizens who want to join jihadists in Syria.
According to Fox News, a U.N. report has confirmed sarin gas was used on August 21 attack outside Damascus in which hundreds were killed.
Trevidic said such suspicion of sarin use by the regime is motivating foreign jihadists and demonstrably has lured more into Syria, the report added.