Washington (AFP) - Washington renewed its support for the territorial integrity of Yemen on Friday, amid fears of a deepening split between the north and the south of the country.
The Gulf country, which used to be two nations, faces a power vacuum after US-backed President Abdrabuh Mansur Hadi announced his resignation amid a deadly standoff with a Shiite militia.
State Department spokeswoman Jen Psaki insisted that Hadi still remained the president, with parliament due to meet for emergency talks on Sunday to discuss the crisis.
"It's up to the Yemeni people to determine what the future is," she told reporters.
The Huthi militiamen, who hail from Yemen's northern highlands, are said to be backed by former president Ali Abdullah Saleh ousted from power in 2012.
Hadi is from Yemen's formerly independent south and in recent days southern officials have taken steps to back his rule, including closing the air and sea ports in the main city of Aden.
The security and military committee for four of south Yemen's provinces said late Thursday it would not take orders from Sanaa following Hadi's resignation.
But Psaki said the US, which again reduced its embassy staffing on Thursday, was "encouraging a reduction in violence and abiding the constitution."
"We continue to support the unity of Yemen and Yemen's legitimate institutions. That's what we feel is in the interest of the Yemeni people," she added.
North and South Yemen were unified 1990, but there have been lingering tensions. In 1994, northern troops defeated a bid for secession by the south.
The Shiite Huthi militia, also known as Ansarullah (Supporters of God), have long complained of marginalization by authorities in Sanaa.
"The Huthis are a legitimate political constituency in Yemen and have a right to participate in affairs of the state. We urge them to be a part of a peaceful transition process," Psaki said.
Even though members have chanted anti-American slogans, Psaki said no threats had been made by the Huthi against US personnel.
While the embassy staffing has been reduced, the mission remains open and operational, she said.
Ambassador Matthew Tueller, who had been on leave, is due back in Sanaa in the coming days, she added.
"We take security risks in that particular part of the world very seriously, and the combatant commander has resources and assets at his disposal should he need them," the Pentagon's Rear Admiral John Kirby told reporters.