UNITED NATIONS - The UN Security Council on Monday unanimously adopted a Russian-sponsored resolution urging Libyan authorities to prevent armed groups and terrorists from seizing weapons accumulated in the country under the Qaddafi regime, including man-portable air defence systems. The resolution especially highlighted the threat of man-portable surface-to-air missiles, dubbed MANPADS, -- shoulder-launched rockets that can be used to shoot down planes and helicopters, making them a favourite among militant groups. It voiced "concern about the proliferation of all arms ... of all types, in particular (MANPADS), from Libya, in the region." It appealed to the Libyan government "to take all necessary steps to prevent the proliferation of all arms." The council called on Libya to cooperate with the Organization for the Prohibition of Chemical Weapons to destroy its remaining chemical weapon stockpiles. Last week Libyan government forces said they had found chemical weapons in Libya and were guarding them. The council said the proliferation of Libyan arms "could fuel terrorist activities, including those of al Qaeda in the Islamic Maghreb," a group with roots in Algeria that has been designated as a terrorist organization by the United States and European Union. Security Council diplomats have said privately that some of Libya's loose weapons have already made their way to Sudan's conflict-torn western Darfur region, where rebels have transferred them to anti-government fighters in other parts of the country. The resolution comes shortly before the Security Council authorization that provided the legal basis for NATO's air campaign against forces loyal to former Libyan leader Muammar Gaddafi lapses at one minute before midnight on Monday. The Security Council underlined "the risk of destabilization posed by dissemination in the Sahel region of illicit small arms and light weapons." The Sahel is 5,400 kilometers from the Atlantic Ocean in the west to the Red Sea in the east, in a belt that varies from several hundred to a thousand kilometers in width, covering an area of 3,053,200 square kilometers. The Security Council also called upon the Libyan authorities to ensure the proper custody of the arms, as well as to meet Libya's arms control, disarmament and non-proliferation obligations under international law, through the full implementation of their plans in this regard. Last week, Ian Martin, the UN envoy to Libya, told the Security Council that international inspectors have to visit hundreds of suspected weapons stockpile sites in Libya.