Riyadh, Muharram 29, 1437, Nov 11, 2015, SPA -- Assad bin Tareq Al Saeed, Representative of Sultan Qaboos bin Saeed of Oman, left Riyadh today following his participation in the 4th Summit of Arab and South American Countries held in Riyadh. At King Khalid International Airport, he was seen off by a number of officials. --SPA 17:21 LOCAL TIME 14:21 GMT www.spa.gov.sa/w