On August 23, 2013, an improvised explosive device (IED) detonated at the base of the Mingus Park Vietnam War Memorial in Coos Bay, Oregon. On September 3, 2013, a second IED was left at The Prayer Chapel in Coos Bay, Oregon. This device was disrupted before it detonated.
Although it is not known at this time whether or not the same person or persons is responsible for both IEDs, the FBI is investigating these two incidents jointly with the Coos Bay Police Department and the Oregon State Police. The Coos Bay Police Department has released a sketch of a man who was seen in the area of The Prayer Chapel shortly before the second IED was found.