Portland police use pepper spray on unruly May Day demonstrators; 1 officer injured

PORTLAND, Ore. (AP) — Police in Portland, Oregon, say an initially peaceful May Day demonstration turned violent Friday evening as a splinter group hurled chairs and other objects at officers. Police temporarily closed a major city bridge and used pepper spray on some demonstrators when a march deviated from its permitted route through downtown.

Police said one officer was injured and taken to a precinct for medical treatment.

The Burnside Bridge over the Willamette River was closed for about a half hour during the height of the evening commute when protesters tried to force their way across.

The protest caused major delays for commuters.

The Oregonian reported that about 100 protesters also skirmished with police at the Pioneer Courthouse Square, surrounding an unmarked SUV with officers inside. Bicycle officers created a path for the SUV to leave the scene. Police say they used flash grenades to allow officers to safely withdraw from the crowd. The crowd broke up a short time later.

Earlier in the day, hundreds took to the streets to celebrate International Workers' Day and protest police violence.