The murder of two FBI agents in the United States during a child sexual abuse investigation has led to charges against 19 men and 13 children being removed from harm in Australia.
Australian Federal Police (AFP) has revealed details of the joint FBI operation targeting child abuse material on the dark web.
The investigation dates back to February 2021 when FBI agents Daniel Alfin and Laura Schwartzenberger were gunned down as they served a search warrant on a paedophile computer programmer who was distributing child sexual abuse material in Florida.
The programmer, David Lee Huber, was thought to have watched the agents through a doorbell camera before shooting them through the unopened door and then killing himself.
Three other agents were injured in the shooting.