Police and protesters clash Friday in downtown Seattle. (Ted S. Warren / Associated Press)
Police make an arrest in Seattle on Friday. (Ted S. Warren / Associated Press)
Smoke rises at the scene of a protest in Seattle (Ted S. Warren / Associated Press)
A clash in downtown Seattle. (Ted S. Warren / Associated Press)
Police keep watch on a May Day march Friday in downtown Seattle. (Ted S. Warren / Associated Press)
Police make an arrest Friday in Seattle. (Ted S. Warren / Associated Press)
