A cyanide device for killing coyotes that spewed the poison on a boy and killed his dog was set up on public land in Idaho in February despite a decision months earlier by federal officials to halt use of the devices on all U.S.-owned land in the state, officials said Tuesday.

The device activated March 16 when 14-year-old Canyon Mansfield and his dog checked it out 300 yards from their home on the outskirts of the small city of Pocatello. The boy has suffered headaches since he was exposed.

The U.S. Bureau of Land Management spokeswoman Erin Curtis told The Associated Press in a telephone interview that the device that went off and another one were put there by the U.S. Agriculture Department in late February/Associated Press. More here.