The Arab League has blamed the Syrian government for last week's alleged chemical weapons attack near Damascus that killed hundreds, calling for the perpetrators to be brought to justice. The Syrian government has denied it was behind the attack. The U.S said it is ready for military action if evidence is conclusive that the Syrian regime used chemical weapons. More than 100,000 have been killed in Syria. Violence has occasionally spilled over into the Israeli-controlled Golan Heights, where Syrian mortar shells have landed.