Flags of GCC nations wave on the streets ahead of the 40th GCC summit. Reuters
Secretary General of the GCC Abdullatif bin Rashid Al-Zayani, Kuwaiti Emir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, Qatar's Prime Minister Abdullah bin Nasser bin Khalifa al-Thani, Omani Deputy Prime Minister Fahd bin Mahmud al-Said, Saudi King Salman bin Abdulaziz, Bahrain's King Hamad bin Isa Al Khalifa, Vice President and Prime Minister of the United Arab Emirates , and ruler of the Emirate of Dubai Mohammed bin Rashid Al-Maktoum and Saudi Crown Prince Mohammed bin Salman. AFP / Saudi Royal Palace
Saudi Crown Prince Mohammed bin Salman and Vice President and Prime Minister of the United Arab Emirates , and ruler of the Emirate of Dubai Mohammed bin Rashid Al-Maktoum, speaking to each other. AFP / Saudi Royal Palace
Saudi King Salman bin Abdulaziz chairs a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Saudi King Salman bin Abdulaziz, flanked by his son Crown Prince Mohammed bin Salman, puts on his spectacles as he prepares to read a document while chairing a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Mohammed bin Rashid Al-Maktoum, Vice President and Prime Minister of the United Arab Emirates, and ruler of the Emirate of Dubai, attends a session of the 40th Gulf Cooperation Council summit. AFP / Fayez Nureldine
Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah (C), Emir of Kuwait, attends a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
A general view of a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Bahrain's King Hamad Al-Khalifa attends the summit. AFP / Saudi Royal Palace
Saudi King Salman bin Abdulaziz chats with King Hamad bin Isa Al-Khalifa of Bahrain. AFP / Fayez Nureldine
King Salman bin Abdulaziz of Saudi Arabia shakes hands with Kuwaiti Emir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, as Qatar's Prime Minister Abdullah bin Nasser bin Khalifa al-Thani and Omani Deputy Prime Minister Fahd bin Mahmud al-Said look on. AFP
King Salman bin Abdulaziz of Saudi Arabia stands between his bahraini counterpart Hamad Al-Khalifa and Omani Deputy Prime Minister Fahd bin Mahmud al-Said. AFP / Saudi Royal Palace
King Salman bin Abdulaziz reads notes. AFP / Saudi Royal Palace
Saudi Arabia's King Salman meets Sheikh Mohammed bin Rashid, Vice President and Ruler of Dubai, during the Gulf Cooperation Council's (GCC) 40th Summit in Riyadh, Saudi Arabia. Reuters
Saudi Arabia's King Salman meets Fahad bin Mahmood, Oman's Deputy Prime Minister, during the GCC 40th Summit in Riyadh, Saudi Arabia. Reuters
Saudi Arabia's King Salman greets Sheikh Mohammed bin Rashid on arrival in Riyadh. Photo SPA
Foreign ministers of the GCC arrive, ahead of an annual leaders summit in Riyadh. Saudi Press Agency / Handout via Reuters
Saudi Arabia's King Salman meets with Secretary-General of the GCC Abdullatif bin Rashid Al Zayani in Riyadh. Saudi Press Agency / Handout via Reuters
Flags of GCC nations wave on the streets ahead of the 40th GCC summit. Reuters
Secretary General of the GCC Abdullatif bin Rashid Al-Zayani, Kuwaiti Emir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, Qatar's Prime Minister Abdullah bin Nasser bin Khalifa al-Thani, Omani Deputy Prime Minister Fahd bin Mahmud al-Said, Saudi King Salman bin Abdulaziz, Bahrain's King Hamad bin Isa Al Khalifa, Vice President and Prime Minister of the United Arab Emirates , and ruler of the Emirate of Dubai Mohammed bin Rashid Al-Maktoum and Saudi Crown Prince Mohammed bin Salman. AFP / Saudi Royal Palace
Saudi Crown Prince Mohammed bin Salman and Vice President and Prime Minister of the United Arab Emirates , and ruler of the Emirate of Dubai Mohammed bin Rashid Al-Maktoum, speaking to each other. AFP / Saudi Royal Palace
Saudi King Salman bin Abdulaziz chairs a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Saudi King Salman bin Abdulaziz, flanked by his son Crown Prince Mohammed bin Salman, puts on his spectacles as he prepares to read a document while chairing a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Mohammed bin Rashid Al-Maktoum, Vice President and Prime Minister of the United Arab Emirates, and ruler of the Emirate of Dubai, attends a session of the 40th Gulf Cooperation Council summit. AFP / Fayez Nureldine
Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah (C), Emir of Kuwait, attends a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
A general view of a session of the Gulf Cooperation Council summit. AFP / Fayez Nureldine
Bahrain's King Hamad Al-Khalifa attends the summit. AFP / Saudi Royal Palace
Saudi King Salman bin Abdulaziz chats with King Hamad bin Isa Al-Khalifa of Bahrain. AFP / Fayez Nureldine
King Salman bin Abdulaziz of Saudi Arabia shakes hands with Kuwaiti Emir Sheikh Sabah Al-Ahmad Al-Jaber Al-Sabah, as Qatar's Prime Minister Abdullah bin Nasser bin Khalifa al-Thani and Omani Deputy Prime Minister Fahd bin Mahmud al-Said look on. AFP
King Salman bin Abdulaziz of Saudi Arabia stands between his bahraini counterpart Hamad Al-Khalifa and Omani Deputy Prime Minister Fahd bin Mahmud al-Said. AFP / Saudi Royal Palace
King Salman bin Abdulaziz reads notes. AFP / Saudi Royal Palace
Saudi Arabia's King Salman meets Sheikh Mohammed bin Rashid, Vice President and Ruler of Dubai, during the Gulf Cooperation Council's (GCC) 40th Summit in Riyadh, Saudi Arabia. Reuters
Saudi Arabia's King Salman meets Fahad bin Mahmood, Oman's Deputy Prime Minister, during the GCC 40th Summit in Riyadh, Saudi Arabia. Reuters
Saudi Arabia's King Salman greets Sheikh Mohammed bin Rashid on arrival in Riyadh. Photo SPA
Foreign ministers of the GCC arrive, ahead of an annual leaders summit in Riyadh. Saudi Press Agency / Handout via Reuters
Saudi Arabia's King Salman meets with Secretary-General of the GCC Abdullatif bin Rashid Al Zayani in Riyadh. Saudi Press Agency / Handout via Reuters
Flags of GCC nations wave on the streets ahead of the 40th GCC summit. Reuters
UAE delegation arrives in Riyadh for GCC summit
Sheikh Mohammed bin Rashid is leading delegation expected to discuss Iran and regional security with GCC member states