In the preamble of the resolution , the Council announced that it had examined the report by the UNIIIC into the bombing in Beirut which killed Hariri and 22 others . The Lebanese authorities were praised for the full co-operation they had given to the inquiry , which had not yet completed its investigation . It was also necessary to continue investigations outside the country , and the Council acknowledged a request from Lebanon to extend the mandate of the UNIIIC . At the same time , it was also recognised that international assistance would be required to establish the truth and hold those responsible for the attack . The commission had already concluded that , given the interference of Syria in the Lebanese government and the intermingling of the intelligence services of both countries , it was impossible that the attack on Hariri was made without the approval of senior Syrian officials . The Council was also mindful that Syrian officials were hesitant to co-operate with the UNIIIC and that some had provided misleading or false information
killed Hariri and 22 others
Assassination of Rafic Hariri
United Nations Security Council Resolution 1636