Yemeni Houthi rebels released six foreign hostages on Sunday, including three Americans, two Saudis and a Briton, Yemeni officials said.
It is believed that the hostages were captured months ago. They will be flown from the capital Sanaa to neighbouring Oman.
A US citizen who was being held hostage was identified as Scott Darden, 45, an employee of a Louisiana-based logistics company. Another hostage was identified as 54 year old US citizen, Sam Farran, a security consultant from Michigan.
Reports said that one of the hostages is believed to be a journalist. He was said to be detained after entering the country without notifying the Houthi authorities. The Houthi sources refused to give information on why the other hostages were detained.
The freed hostages are now reported to be flying to the Gulf nation of Oman. Authorities in Oman have reportedly helped mediate negotiations to secure the release of the hostages.
Saudi Air Forces have led an Arab coalition - comprising of 10 countries - in Yemen since March 26, targeting Houthi militias to restore the exiled government of Abd Rabbu Mansour Hadi.
On July, forces loyal to Hadi had retaken Aden from the Houthis, who were supported by loyalists of Ali Abdullah Saleh, the former President of Yemen, in a major setback for the rebels.
At least 4,000 civilians were killed since the coalition began its bombing campaign in support of the exiled government in last March, and at least 1.3 million were forced to flee their homes during the conflict.