claims and administers Western Sahara, but sovereignty is unresolved and the UN is attempting to hold a vote on the issue; the UN-administered cease-fire has been in effect since September 1991; Spain controls five places of sovereignty (plazas de soberania) on and off the coast of Morocco - the coastal enclaves of Ceuta and Melilla which Morocco contests, as well as the islands of Penon de Alhucemas, Penon de Velez de la Gomera, and Islas Chafarinas.