SANAA, Yemen (AP) — Yemen's Shiite Houthi rebels have released six foreign hostages, including two Americans, and flown them to neighboring Oman, which helped negotiate their release, officials said Sunday.

Oman's Foreign Ministry said two Americans, three Saudis and a British citizen were released following mediation efforts by diplomats acting on behalf of Sultan Qaboos bin Said, according to a statement carried by state-run media.

The White House confirmed that two Americans had been sent to Oman, which it thanked for helping to secure their release. A statement from the National Security Council did not identify the Americans or detail the circumstances of their captivity or release.

The White House said it "worked tirelessly to secure the release" of the Americans since they were taken earlier this year.

"This outcome underscores that we have been and will continue to be tireless in pursuing the release of all Americans detained abroad unjustly, including those who remain in the region," the statement said.

A spokesman for a New Orleans-based logistics company, Transoceanic Development, confirmed that employee Scott Darden, 45, was freed. Darden was helping deliver aid in the region for Transoceanic and relief organizations among its clients. It was not immediately clear who the other hostages were.

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