Omar Bin Laden, the son of Osama Bin Laden, said in an April 12, 2023 interview that aired on Al-Qabas TV (Kuwait) that Al-Qaeda had experimented with weapons of mass destruction and chemical weapons in Afghanistan. He said that there was an Iraqi man who had tested such weapons on animals, and that although he believes the experiment was successful, such weapons were never employed.
Interviewer: "Who [in Afghanistan] dealt with chemical weapons and WMDs?"
Omar Bin Laden: "If I am not mistaken, there was a Iraqi guy, or someone from around there. He knew how to produce these weapons and he would test them on animals. I think the experiment was successful, but I believe that Al-Qaeda did not get to the point of using these weapons."