Two United States citizens and the remains of a third have been released by Iran-backed militants in Yemen, U.S. officials have said. American citizens Sandra Loli and Mikael Gidada were released from Houthi custody Wednesday, National Security Advisor Robert C. O’Brien said in a statement. “We send our condolences to the family of Bilal Fateen whose remains will be repatriated as well,” he added, in an apparent reference to the dead U.S. citizen.