In 1991 , two Libyan intelligence agents were indicted by prosecutors in the United States and United Kingdom for their involvement in the December 1988 bombing of Pan Am Flight 103 . Six other Libyans were put on trial in absentia for the 1989 bombing of UTA Flight 772 over Chad and Niger . The UN Security Council demanded that Libya surrender the suspects , cooperate with the Pan Am 103 and UTA 772 investigations , pay compensation to the victims ' families , and cease all support for terrorism . Libya 's refusal to comply led to the approval of Security Council Resolution 748 on 31 March 1992 , imposing international sanctions on the state designed to bring about Libyan compliance . Continued Libyan defiance led to further sanctions by the UN against Libya in November 1993
UTA Flight 772
UTA Flight 772
Foreign relations of Libya under Muammar Gaddafi