Saudi Arabia concluded the GCC Summit by confirming that the embargo between Qatar has been lifted.
Leaders signed a new declaration with Saudi Arabia today in steps towards repairing broken ties.
This news of a 'solidarity' comes as Gulf countries gather in Saudi Arabia for GCC Summit talks.
All six GCC delegations have arrived at Saudi Arabia's al-Ula to commence the 41st summit, which will mark the end of the three-year long Gulf crisis.
Analysis: Non-Arab powers have emerged as new regional centres of influence in the Middle East's changing geopolitical map.
It comes after borders between Qatar and Saudi Arabia were reopened.
Sheikh Tamim bin Hamad Al-Thani has landed in the Saudi city of Al-Ula to participate in the GCC summit.
Tunisia, the current president of the UN Security Council, called for a resolution sending international monitors to support Libya's brittle ceasefire to be adopted as soon as possible.
Turkey on welcomed the announcement that Saudi Arabia will reopen its borders and airspace to Qatar, but called for all sanctions on its ally Doha to be lifted.
Saudi Arabia will reopen its borders and airspace to Qatar, the Kuwaiti foreign minister said, more than three years after Riyadh sealed both and led an alliance to isolate Doha.