Iranian President Hassan Rouhani has called for the formation of an international fact-finding committee to investigate the chemical weapons attack in the northern Syrian town of Idlib that killed at least eighty-seven people. <br/><br/>During a speech in Tehran today, Mr Rouhani warned that US missile strikes in response risked escalating extremism and instability in the region. Tehran is Syrian President Bashar al-Assad's main regional ally and has provided military and economic support for his fight against rebel groups and Islamic State terrorists.<br/><br/>Meanwhile, Turkey said, the US intervention in Syria is appropriate but not enough. Speaking in the southern city of Antalya today, Turkish Foreign Minister Mevlut Cavusoglu called for a political solution leading to establishment of a transitional government accepted by all Syrians as soon as possible.