Russian Foreign Minister Sergei Lavrov left here this morning after participating in the 2nd joint ministerial meeting for strategic dialogue between Gulf Cooperation Council (GCC) member States and the Russian Federation, which was held in Riyadh yesterday evening, to discuss the Syrian crisis and its developments. At Riyadh Airbase airport, he was seen off by a number of officials and Russian Ambassador to the Kingdom, Dr. Oleg Ozerov.