Saudi King Salman bin Abdulaziz and Turkish President Recep Tayyip Erdogan

A picture provided by the Saudi Press Agency (SPA) on December 29, 2015 shows Saudi King Salman bin Abdulaziz (R) and Turkish President Recep Tayyip Erdogan attending a welcoming ceremony held in the Saudi capital Riyadh. King Salman and Erdogan were expected to discuss bilateral ties and cooperation between the two countries in various fields. AFP PHOTO / SPA