Feds are investigating the discovery of at least three flashlight bombs — flashlights designed to explode — found recently in the Phoenix area, CBS news reports
ATF officials are puzzled by the flashlight bombs that have injured five people recently.
Unclear who is behind the small bombs, local police are erecting 22 billboards across the metro area to warn residents about the flashlights.
Feds don’t suspect terrorism because the attacks appear to be random and without messages.
CBS News says the bombs are rigged to a small battery in the flashlight so that turning it on causes a blast.