BOONE, Iowa (AP) — Authorities have dismantled a homemade pipe bomb that was set to explode at an Iowa hunting area. The Boone County Sheriff’s Office said in a Facebook post that two deputies responded Monday after receiving a report about the device that was found on the lid of a container in the area. The post said the Iowa State Fire Marshalls Office was called and that the device was examined and dismantled. The post said the device was “set to explode in a delayed manor and without any supervision.”