The U.S. has evacuated its remaining troops from Yemen on Saturday as the conflict rages on between Sunni tribes, al-Qaeda affiliate groups and the Houthis, a Shiite group allegedly influenced by Iran.
Earlier in the day, Yemeni officials said that the U.S. had pulled out its remaining 100 special forces from Aden Airbase.
"Due to the deteriorating security situation in Yemen, the U.S. Government has temporarily relocated its remaining personnel out of Yemen," U.S. State Department Press Relations Director Jeff Rathke said in a statement.
The evacuation took place a day after several suicide bombings at Shiite Houthi mosques in Sanaa, claimed by Daesh, killed more than 130 people.
Rathke said the U.S. had informed Yemeni President Abdurabbuh Mansour Hadi before the evacuation took place.
"We urge the immediate cessation of all unilateral and offensive military actions," he added. "We join all of the other members of the Security Council in underscoring that President Hadi is the legitimate authority in Yemen."
The Houthis have been controlling the Yemeni capital Sanaa since September 2014 and following a strong push the Houthi rebels forced the Yemeni government to resign in January.
Last month, President Hadi fled to southern city of Aden escaping a Houthi-imposed house arrest in Sanaa after the Houthis issued what they described as a constitutional declaration dissolving parliament and establishing a 551-member transitional council.
"We call upon the Houthis, former President Ali Abdullah Saleh, and their allies to stop their violent incitement that threatens President Hadi, Yemeni government officials, and innocent civilians," the State Department spokesman said.
The U.S. has been conducting operations and airstrikes on the positions of al-Qaeda in Arabic Peninsula, or AQAP, also known as Yemeni al-Qaeda.
Fractious Yemen has remained in a state of turmoil since pro-democracy protests forced autocratic president Ali Abdullah Saleh to step down in 2012 after 33 years in power.