Riyadh, Muharram 30, 1437, Nov 12, 2015, SPA -- President of the Co-operative Republic of Guyana David Arthur Ranger left Riyadh today following his participation in the 4th Summit of Arab and South American Countries held in Riyadh. At King Khalid International Airport, the President of the Co-operative Republic of Guyana was seen off by a number of officials. --SPA 18:15 LOCAL TIME 15:15 GMT www.spa.gov.sa/w