The U.S. called on the Syrian regime and its allied forces Monday to immediately halt all hostilities in northwestern Syria's Idlib province after an airstrike on a Turkish convoy killed three civilians and injured 12 others. "The Assad regime and its allies must return to the ceasefire in #Idlib now," State Department spokeswoman Morgan Ortagus said on Twitter. "Today’s reckless airstrike on a Turkish convoy follows ongoing vicious attacks against ...