President Abedrabbo Mansour Hadi is making the rare visit on the advice of King Salman and Crown Prince Mohammed bin Salman of Saudi Arabia, where he lives in exile, Yemen's government-run Saba news agency reported.
But Hadi's close relations with the Muslim Brotherood-dominated Islah party have infuriated Abu Dhabi, which has swung its support behind secessionists who want to restore the pre-1990 independence of south Yemen.
UAE forces and their allies have also occupied several other key ports and islands, including the strategic Arabian Sea archipelago of Socotra, where Saudi Arabia too deployed troops last month as part of a deal to appease Hadi's government.
But last month UAE troops launched a joint offensive with Hadi's forces and their Saudi allies against the rebel-held Red Sea port of Hodeida.
The city, which has a population of some 600,000, is the entry point for 70 per cent of Yemen's imports, the vast of majority of them desperately needed food, and there has been mounting UN and Western pressure for a halt to the potentially bloody assault.
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