In this image taken from a video obtained from Ugarit News, which has been authenticated based on its content and other AP reports, smoke and fire fill the skyline over Damascus, Syria, early Sunday, May 5, 2013 after an Israeli airstrike. Israeli warplanes struck areas in and around the Syrian capital Sunday, setting off a series of explosions as they targeted a shipment of highly accurate, Iranian-made guided missiles believed
  In this image taken from video obtained from the Ugarit News, which has been authenticated based on its contents and other AP reporting, smoke and fire fill the the skyline over Damascus, Syria, early Sunday, May 5, 2013 after an Israeli airstrike. Israeli warplanes struck areas in and around the Syrian capital Sunday, setting off a series of explosions as they targeted a shipment of highly accurate, Iranian-made guided missiles believed to be on their way to Lebanon's Hezbollah militant group, officials and activists said. The attack, the second in three days, signaled a sharp escalation of Israel's involvement in Syria's bloody civil war. Syria's state media reported that Israeli missiles struck a military and scientific research center near the Syrian capital and caused casualties. (AP Photo/Ugarit News via AP video)  