Tripoli , Libya ( CNN ) -- Libya 's interim leaders will declare liberation on Sunday and hold elections in the coming months as the war-torn country works toward building a new society in the post-Moammar Gadhafi era . Mahmoud Jibril , chairman of the National Transitional Council executive board , said elections `` should be within a period of eight months , maximum . '' He spoke at the World Economic Forum in Jordan . The first vote will be for a National Congress that will draft a constitution . After that , parliamentary and presidential elections will be held . Jibril said that oil-rich Libya is currently producing around 300,000 barrels per day , up from near zero during the depths of the conflict . The country should be back at its prewar output of 1.6 million barrels of oil per day within 15 months , he said . Gadhafi 's death Thursday solidified the power of the NTC , which will mark the country 's liberation on Sunday in the eastern city of Benghazi , where the uprising started . NATO , which launched an operation to protect Libyan citizens against the Gadhafi regime during the Libyan war , plans to ends its operations by October 31 . Speaking in his weekly address Saturday , Obama said Gadhafi 's death `` showed that our role in protecting the Libyan people , and helping them break free from a tyrant , was the right thing to do . '' `` Our brave pilots and crews helped prevent a massacre , save countless lives , and give the Libyan people the chance to prevail . Without putting a single U.S. service member on the ground , we achieved our objectives . Soon , our NATO mission will come to a successful end even as we continue to support the Libyan people , and people across the Arab world , who seek a democratic future . '' Questions persist about what would happen to Gadhafi 's body , which was on public display Saturday at a Misrata meat market cooler . Queues of people lined up to view the corpse , which appeared to have a bullet hole on the left temple . His family issued a statement Friday calling on the United Nations and Amnesty International to push Libya 's new leadership `` to hand over the bodies of the martyrs of their tribe so they can be buried according to Islamic rites , '' a pro-Gadhafi TV station reported . Libyan and world powers wanted to capture Gadhafi and prosecute him for war crimes . The U.N. human rights office and activist groups like Amnesty and Human Rights Watch have called for a probe into his death amid questions over the final moments of the late Libyan strongman 's life . They want to know whether Gadhafi was killed in crossfire or executed by fighters . `` There are at least two cell-phone videos , one showing him alive and one showing him dead . Taken together , these videos are very disturbing , '' human rights office spokesman Rupert Colville told reporters in Geneva on Friday . `` We believe there is a need for an investigation and more details are needed to ascertain whether he was killed in the fighting or after his capture . '' Human Rights Watch , which is also calling for an internationally supervised autopsy and an investigation into the death , said it is unlikely that Gadhafi was killed in crossfire . Peter Bouckaert , the group 's emergencies director , told CNN that fighting had ended when Gadhafi was cornered in a drainage ditch . He said crowds beat Gadhafi in what was a `` humiliating end '' for the former dictator . `` When he left the area , he was very much alive , '' Bouckaert said . `` There 's no reason why he should have been subjected to this kind of mob justice . '' CNN 's Dan Rivers and Victoria Brown contributed to this report .
NEW : Libya will approach its prewar oil output in Sunday , an official says . Interim leaders will declare Libya on 15 months . Liberation Day is seeking a new constitution . CNN is scaling back operations .