The Islamic State is intent on using chemical and nuclear weapons of mass destruction, and it has seized enough radioactive material to build a “dirty” bomb, according to Australian intelligence reports.

“The use of chlorine by Da’esh [the derogatory Arabic term for the Islamic State], and its recruitment of highly technically trained professionals, including from the West, have revealed far more serious efforts in chemical weapons development” than previously thought, said Australian Foreign Minister Julie Bishop at an international forum devoted to ending the use of chemical weapons.