According to the Daily Mail reports, the National Transitional Council (NTC) has said the chemical warheads have been secured and would be made safe by experts.
"They are from the Gaddafi era and are under guard until they can be handed over," the paper quoted a spokesman as saying.
Earlier, in 2003, Gaddafi had agreed to destroy most of his weapons of mass destruction as part of moves to bring Libya, then a pariah state, in from the cold. But the agreement was stopped in 2004 when Blair shook hands with Gaddafi in Tripoli.
The disarming process was being overseen by the Organisation for the Prohibition of Chemical Weapons, but was never finished because of the outbreak of war, the paper said. The dictator retained around ten tons of deadly mustard gas and other chemicals. Throughout the uprising, rebels feared Gaddafi would unleash WMD on his own people.