Egyptian President Abdel Fattah al-Sisi attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Iraq's President Barham Salih attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Arab leaders pose for the camera, ahead of the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Arab foreign ministers attend a preparatory meeting ahead of the Arab summit in Tunis, Tunisia March 29, 2019.

Flags are pictured before a preparatory meeting between Arab foreign ministers ahead of the Arab summit in Tunis, Tunisia March 29, 2019. REUTERS/Zoubeir Souissi

Jordan's King Abdullah II attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Palestinian President Mahmoud Abbas attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Tunisian President Beji Caid Essebsi stands with Saudi Arabia's King Salman bin Abdulaziz, Jordan's King Abdullah II and Palestinian President Mahmoud Abbas during the group photo with Arab leaders, ahead of the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Arab League Secretary-General Ahmed Abul Gheit, Saudi Arabia's King Salman bin Abdulaziz and Saudi Arabia's Foreign Minister Ibrahim al-Assaf attend the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Syria's chair is seen empty during the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Lebanese President Michel Aoun and Libyan Prime Minister Fayez al-Sarraj attend the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

A man stands outside the Arab Summit venue in Tunis, Tunisia March 31, 2019.

Qatar's Emir Sheikh Tamim bin Hamad Al-Thani attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Saudi Arabia's King Salman bin Abdulaziz speaks with Tunisian President Beji Caid Essebsi during the group photo with Arab leaders, ahead of the 30th Arab Summit in Tunis, Tunisia March 31, 2019.

Algeria's Senate President Abdelkader Bensalah attends the 30th Arab Summit in Tunis, Tunisia March 31, 2019.