A call about a “Suspicious person” at a rest area off Interstate 80 in western Iowa resulted in the arrest of a Washington State man, Wednesday. Trooper Mike Miller with the Iowa State Patrol in Council Bluffs, told KJAN News the call came in at around 11-a.m. A Trooper who responded to the scene encountered the suspicious person and ultimately placed him under arrest for disorderly conduct and interference with official acts. The man’s vehicle was towed. During an inventory of the vehicle, authorities located items that appeared to be of an explosive nature.

Officials contacted the Bureau of Alcohol, Tobacco, Firearms and Explosives [ATF], State Fire Marshal’s Office and FBI. Other agencies responding to the scene include the Bureau of Narcotics Enforcement, Underwood Fire and Rescue, Department of Transportation.

The items in the vehicle were examined, and determined to be an explosive device. The device was detonated in a controlled environment at the rest area. The vehicle was removed from the scene and the subject was subsequently charged with possession of explosive devices. He was booked into the Pottawattamie County Jail.

The suspect identified himself as Christopher T. Peak, of Seattle, Washington. Trooper Miller said Peak has not been cooperating with investigators. Miller said the interstate was shut down in both direction for several hours while the explosives were being removed and safely detonated.

Miller said the incident remains under investigation, while authorities work to confirm the suspects’ identity, track down where the explosive devices came from, and how Peak came into possession of those devices. They also hope to determine his motive for possessing the explosives.