A suspect in a string of armed robberies in Portland has been arrested.
During the investigation, police identified the suspect's vehicle. An officer spotted the vehicle and it was pulled over. 49-year-old Justin Christiansen, of Portland, was arrested.
Police found what looked like a bomb in the vehicle. The Explosive Disposal Unit checked it out and determined it was a fake device.
Christiansen faces 12 robbery counts and more charges could be filed.