Someone vandalized the Portland Police union headquarters doing thousands of dollars in damage early Tuesday.
Spokesman Scott Westerman said just before 1 a.m., bricks and rocks were thrown through their windows, doing about $20,000 worth of damage to the outside of the building.
Eight people were arrested and three officers were injured Monday night when protesters clashed with police in downtown Portland in a rally against two recent officer-involved shootings.
Westerman said computers and other items were damaged inside the office.
No suspects have been named in the case.