"Huge amounts" of sarin are being moved from desert areas in the south to the north of the country and to the suburbs of the Libyan capital, Tripoli, Ahmed Gaddaf al-Dam said in an interview with the London-based Arabic international newspaper Asharq al-Awsat on Thursday, Sputnik News reported.
He added that the gas was first used in the country in 2014, yet some Western countries "turned a blind eye".
Sarin gas, also called GB, is one of the most dangerous and toxic chemical weapons known. It was invented in Germany in 1938 during attempts to develop pesticides; however, following its discovery, the Nazis weaponized it.