Custodian of the Two Holy Mosques King Salman bin Abdulaziz sent on Wednesday an invitation to Sultan Qaboos of Oman to attend next week’s Gulf Cooperation Council summit. The 40th GCC summit will be hosted by Riyadh on December 10. GCC Secretary General Abdullatif Al-Zayani delivered the invitation to the Oman ruler during a meeting in Muscat with Deputy Prime Minister for the Council of Ministers Sayyid Fahd bin Mahmoud al-Said.