The release of the last three ethnic Uighurs from detention at Guantanamo Bay brings the prisoner population at the U.S. base in Cuba to 155.
President Barack Obama, who had pledged to close the detention center upon taking office, has renewed the effort to resettle prisoners. Eleven were freed in 2013, including nine in December, and officials have said more are expected.
Of the remaining prisoners, six are on trial for terrorism offenses, including five charged with aiding and planning the Sept. 11, 2001, terrorist attacks. About 80 have been approved for transfer or resettlement, including nearly 60 from Yemen, which the U.S. has said is too unstable to properly secure them at this time.