A town in Idlib province was attacked and toxic gas was used overnight, a Syrian rescue service reported. Meanwhile, the U.S. State Department said it was looking into the reports, adding such a development would be "extremely serious,” France24 reported. The opposition Syrian National Coalition (SNC) accused President Bashar al-Assad of launching the attack. Assad has denied previous accusations of using chemical weapons. A spokesman for the Syria Civil Defence said 33 people, mostly women and children, were affected by the gas, which they suspect was chlorine, in Saraqeb, in rebel-held Idlib province. The group, which describes itself as a neutral band of search-and-rescue volunteers,...