Thousands of Yemenis marched in Aden on Thursday in support of the United Arab Emirates, which assists separatists who seized the southern city from the Saudi-backed government in a power struggle that has opened a new front in Yemen's war.

The rally took place as Saudi Arabia, leader of an Arab coalition battling Yemen's Iran-aligned Houthis, hosts indirect talks between the two sides to end a standoff that has strained Riyadh's alliance with its main regional partner, the UAE.

UAE-backed separatist fighters are part of the coalition that intervened in Yemen in March 2015 to try to restore the government of President Abd-Rabbu Mansour Hadi that was ousted from power by the Houthis in the capital Sanaa in late 2014.