Yemeni and American rights protesters have staged a demonstration in front of U.S. Embassy in Sanaa, demanding release of Yemeni Guantanamo detainees.

Mohammed Nagi of Yemen-based National Organization For Defending Rights and Freedom known as Hood says activists are demanding that President Barak Obama enforce his pledge to close Guantanamo Bay and transfer 68 detainees home, including 56 Yemenis.

Seven American activists joined the rally Monday. Protesters dressed in orange clothes similar to detainees' uniforms.

The protest comes after Obama chose a Washington lawyer to act as the State Department's special envoy for closing the military-run detention center.

A hunger strike by more than 100 of 166 detainees protesting their conditions and indefinite confinement has prompted fresh calls for the prison's closure.