A handout picture released by the Palestinian Authority’s press office (PPO) on December 30, 2015 shows Saudi Arabia’s King Salman (R) receiving an honorary necklace from Palestinian president Mahmud Abbas during a meeting in the capital Riyadh. AFP PHOTO / PPO / THAER GHANAIM === RESTRICTED TO EDITORIAL USE – MANDATORY CREDIT “AFP PHOTO / PPO / THAER GHANAIM”