RIYADH — The six-member Gulf Cooperation Council (GCC) has welcomed a ceasefire announcement in Libya. Dr. Nayef Falah M. Al-Hajraf, secretary general of the GCC, called on all parties "to adhere to (this) constructive step, to urgently engage in political dialogue, and to work through mediation of the United Nations to reach a permanent and comprehensive solution to end the fighting and conflict in Libya , and achieve security and stability for the brotherly Libyan people". Libya"s warring rival administrations announced separately on Friday that they would cease all hostilities and hold nationwide elections, drawing praise from the UN, the EU and several Arab countries. The surprise announcement followed multiple visits by top foreign diplomats to Libya in recent weeks, and came after a series of agreements and pledges that, however, have failed to be implemented. Friday"s statements were signed by Fayez Al-Sarraj, head of the UN-recognized unity Government of National Accord (GNA), based in the capital Tripoli, and Aguila Saleh, speaker of the eastern-based parliament backed by military strongman Khalifa Haftar. The UN"s top official to Libya, Stephanie Williams, welcomed the move and called for "all parties to rise to this historic occasion and shoulder their full responsibilities before the Libyan people". European Union diplomatic chief Josep Borrell hailed an "important and positive" initiative, adding it was "crucial now that all parties stand by their statements". — Agencies