A member of Libya\'s National Transitional Council (NTC) has raised doubts over the exact circumstances of former Libyan leader Mummar Gaddafi\'s death, the Qatar-based Al-Jazeera TV reported Saturday. \"Gaddafi was clearly captured and there should be an investigation as to how he ended up dead a short while later,\" Waheed Burshan was quoted by Al-Jazeera as saying. \"Was there a fight when transporting him to Misrata? We don\'t know. But there was definitely a time gap and I am sure an investigation will happen,\" he added. Burshan\'s remarks, contradicting head of NTC\'s executive committee Mahmoud Jibril\'s account that Gaddafi was killed in crossfire, came a day after the United Nations called for an investigation into his death. On Saturday, people continued to line up in the western coastal city of Misrata to view the corpse of Gaddafi, kept in a freezer as speculation remained rife as to when and where he would be buried. Men, women and children continued to line up to see for themselves the body of the former leader that ruled Libya for four decades. The site\'s guards had even organized separate visiting hours for families and single men. Gaddafi, who ruled Libya with an iron grip, and his son Mutassim, were killed on Thursday when NTC forces wrested control of his hometown of Sirte.