Shadiyo Hussain chants “hands up, don’t shoot!” with about 150 people as they march from Lincoln Park down Pearl Street to Commercial Street for a protest.

Police arrest protesters who blocked Commercial Street on Friday night.

Arrests are made during a confrontation between police and protesters on Commercial Street.

Police arrest protesters who blocked Commercial Street for hours Friday night.

Friday night's protest led to 18 arrests as protesters blocked Commercial Street for hours.

Portland police officers line up during Friday night's protest.

Mohamed Omar chants through a bull horn while police monitor the scene during Friday night's protest.

Police keep their distance on Pearl Street as about 150 people rally on Commercial Street, calling for Portland police to affirm the value of black lives, promise more transparency and civilian participation in police oversight, and start using body cameras for officers.

Chelsea Mancini, center, of Portland and others link arms while standing in the middle of Commercial Street during Friday's protest by about 150 people who marched from Lincoln Park to Commercial Street, calling for changes for the Portland Police Department.

A man watching the protest on Commercial Street yells “all lives matter.”

About 150 people march from Lincoln Park to Commercial Street in Portland on Friday night in a protest. Jill Brady/Staff Photographer

Hamdi Hassan, left, an organizer for Portland Racial Justice Congress, applauds 10-year-old Meseret Day of Standish after her remarks at Friday's event in Lincoln Park. Jill Brady/Staff Photographer