The NAACP's special march and rally in Spokane was held under tight security.
The Sunday event was held to promote peace and respond to a bomb that was left along a parade route on Martin Luther King Jr. Day.
KXLY reported that Spokane police kept a close eye on the event, with officers on the ground and snipers on rooftops.
National NAACP President and CEO Benjamin Todd Jealous led the march from the Spokane Veterans Memorial Arena to Riverfront Park.
Kevin Harpham, who has extensive ties to white supremacist groups, was indicted last month on charges of placing a bomb along the Jan. 17 parade route in Spokane. The pipe bomb was disabled before it could explode.