Dozens have been injured and at least 10 people have died as separatists in southern Yemen seize government buildings in the city of Aden amid fierce clashes with forces of President Abdrabbuh Mansour Hadi.
The separatists have backed the government against Houthi rebels, but long-simmering tensions have flared in recent weeks, with the separatists accusing the government of corruption and discrimination.
The development further complicates an already dire situation in Yemen, where millions are in need of aid.