(Boone County, IA) –  We’re following a developing story out of Boone County…where officials are surrounding a home at this hour..after discovering explosive devices inside. Boone County Officials executed a search warrant at a home West of Madrid near the High Trestle Trail Bridge. Deputies discovered several active devices inside the home. The State Fire Marshall and Boone County Authorities are on the scene. We’ll have more information for you as it becomes available.