Backpack contains a potentially deadly device is capable of causing "many casualties" were found in Spokane, Washington, on the path of the Reverend Martin Luther King Jr. Day Parade, the FBI said Tuesday.
The device found on Monday morning, three workers in a parade before the event, supervisors FBI agent Frank Harrill told CNN. City of explosives disposal unit neutralized the device.
The gray backpack was placed on a bench at the northeast corner of Washington Street and West North Main Avenue in downtown Spokane, the FBI said in a statement.
Officers are looking at the issue, but Harrill not give details on the device and of the investigation, which includes a $ 20,000 reward for the arrest and conviction of those responsible.
The FBI has released photos of the pack of the brand "Swiss Army and two shirts that were found inside. One shirt says" Treasure Island 2009 "and another says" Stevens County Relay for Life-25th June 2010 26th.
FBI asks public information on who may have been a pack of about 8:00 to 9:25 Monday. He also asked for photographs or videos taken in the field.
The incident forced the organizers of the march to change its itinerary, "says CNN affiliate Kreme.
Ivan Bush, who helped organize the March King's birthday in Spokane for over 20 years, said the spokesman-review, the potential that new backpack was "hurts to see and hear. "