United Nations: The U.N. Security Council has called for an emergency meeting to discuss the situation in Yemen.
The U.N. spokesperson's office in an email said the council will hold a closed session on Sunday afternoon at 3 p.m. (1900 GMT) for consultations on Yemen.
On Saturday, Yemen's Shiite rebels issued a call to arms to battle forces loyal to the country's embattled president. U.S. troops were evacuating a southern air base crucial to America's drone strike program after al-Qaida militants seized a nearby city.
The turmoil comes as Yemen battles al-Qaida in the Arabian Peninsula, the target of the drone program, and faces a purported affiliate of the extremist Islamic State group that claimed responsibility for a series of suicide bombings killing at least 137 people on Friday.
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