By Mohammed Ghobari , Nayera Abdallah and Bo EricksonADEN/DUBAI, Sept 14 (Reuters) - Middle East diplomacy appeared to falter heading into Monday with the postponement of a meeting between Iran and other Persian Gulf powers, while fresh attacks around the region's two most important oil transit routes deepened concern over global energy supplies.

Foreign ministers from the Gulf Cooperation Council—which is comprised of Saudi Arabia, the UAE, Qatar, Kuwait, Bahrain, and Oman—will meet their Iranian counterpart on Monday.

The meeting, which will not count on the presence of all the Gulf states, aims to find a solution to the situation in the Strait of Hormuz.