Senior officials from the Gulf Arab states are arriving in the Qatari capital for a summit of the six-member Gulf Cooperation Council, which follows an unusually public rift that tested diplomatic relations in the oil-rich region.

Saudi Crown Prince Salman bin Abdulaziz Al Saud and Emirati Prime Minister and Vice President Sheikh Mohammed bin Rashid Al Maktoum were among those arriving in Doha on Tuesday. Prince Salman is next-in-line to the Saudi throne, while Sheikh Mohammed also serves as ruler of Dubai.

Saudi Arabia and the Emirates, the two largest Arab economies, as well as Bahrain pulled their ambassadors from Qatar earlier this year in a move widely seen as a protest over Qatar's support for Islamist groups like the Muslim Brotherhood. They agreed to reinstate the ambassadors last month.