United Nations Security Council resolution 791, adopted unanimously on 30 November 1992, after recalling resolutions 637 (1989), 693 (1991), 714 (1991), 729 (1992) and 784 (1992), the Council approved a decision by the Secretary-General Boutros Boutros-Ghali to extend the mandate of the United Nations Observer Mission in El Salvador (ONUSAL) for a further six months until 31 May 1993.