And this was during a protest against supposed police violence in Oakland.

PORTLAND, Ore. — Occupy Portland protesters marched Wednesday night in a show of support for an Iraq War veteran injured in a confrontation with police at Occupy Oakland, Calif.

U.S. Marine veteran Scott Olsen had his skull cracked open last week. He was hit by an Oakland police tear gas canister. He’s now in critical condition.

The march, from Terry Schrunk Plaza, began at about 5:30 p.m. and continued for a little more than two hours. At one point it crossed a bridge into Southeast Portland before returning to the west side.

Police made one arrest during the march. They said 30-year-old David Anthony Burgess shoved a police sergeant into a TriMet bus while it was moving, then dashed back into the crowd.

The sergeant suffered minor injuries and did not require medical treatment, police said.

Police later found Burgess after the march and arrested him. He was booked into the Multnomah County Jail, accused of assaulting a police officer, interfering with police, second-degree disorderly conduct and harassment.

The march became large enough that Portland police had to call in extra help from its Rapid Response Team, traffic division and officers from all three precincts to help control the crowd.