Yemen's southern separatists claim sole control of Aden

Yemen's southern separatists on Sunday broke a peace deal with the country's internationally recognized government and claimed sole control of the regional capital of Aden, threatening to resume fighting between the two ostensible allies.

In a statement, the separatist' Southern Transitional Council, which is backed by the United Arab Emirates, declared a state of emergency and said it would self-govern the key southern port city and other southern provinces. The separatists accused Yemen's government, which is supported by Saudi Arabia, of corruption and mismanagement.

There was no immediate response from the internationally recognized government to the separatists' announcement.

The division between the two supposed allies is another facet of the country's complicated civil war. On one side are the separatists and on the other are forces loyal to former President Abed Rabbo Mansour Hadi. Both have fought together in the Saudi-led coalition's war against Yemen's Shiite Houthi rebels.

The Houthis in 2014 overran major parts of northern Yemen, including the capital, Sanaa, pushing out the internationally recognized government and ushering in a war that has killed tens of thousands of people. Hadi fled first to Aden and then to Saudi Arabia.

The Saudi-led coalition intervened in the conflict in 2015 and has since waged war against the Houthis in an effort to restore Hadi's government to power. The fighting in the Arab world's poorest country has also left millions suffering from food and medical care shortages and pushed the country to the brink of famine.