Two Americans held captive in Yemen were freed and flown to Muscat in neighbouring Oman after Omani officials mediated their release, Omani state media reports.
Oman state television broadcast footage of the two Americans disembarking from a plane belonging to the Royal Air Force of Oman on Saturday night.
Yemenis wounded in the civil war there were also flown over for treatment in Oman aboard the same plane, it reported.
A Foreign Ministry official told the broadcaster Oman had worked with Yemeni authorities in Sanaa to secure the Americans' release.
A Houthi official confirmed their departure from Sanaa.
The US State Department expressed gratitude to the Omani government for facilitating the release and recognised the action as a "humanitarian gesture" by the Houthis, the northern Yemeni armed group that seized control of the capital Sanaa in 2014.
