U.S. President Barack Obama spoke with Canadian Prime Minister Stephen Harper by telephone Tuesday to discuss their "grave concern" about the reported use of chemical weapons by the Syrian regime against civilians, the White House said. "The United States and Canada strongly oppose the use of chemical weapons, and the President and Prime Minister pledged to continue to consult closely on potential responses by the international community," the White House said in a statement. -- SPA 20:29 LOCAL TIME 17:29 GMT تغريد
