What is a rigged mortar round?

A rigged mortar round refers to a conventional mortar shell that has been modified or booby-trapped to detonate under specific conditions, often as part of an improvised explosive device (IED). This can involve altering the shell's fuse or incorporating additional explosives to enhance its lethality. Such modifications make it more dangerous, particularly for military personnel or civilians who might inadvertently trigger it. The term highlights the danger posed by tampered munitions in conflict zones.