A series of explosive devices have been found at various residential locations across the Grand Valley. Officials say there have been a total of 5 objects made with powder and a triggering device reported. Three devices were detonated, but there have been no injuries. The locations include 816 Mazatlan, 2256 Knollwood Lane, 2975 Summerbrook Drive, The 600 block of Seranade Street and 2344 1/2 Rattle Snake. The Grand Junction Police Department is working with the Colorado State Patrol, The Mesa County Sheriffs Office and the F.B.I to investigate this case. Officials say they have a person of interest, but at this point no arrests have been made. Police warn residents to cautious of anything object that may be suspicious and contact 911 if you have any information.