PORTLAND, Ore. (AP) — Protesters broke into the police headquarters in Portland, Oregon, Friday night and authorities said they lit a fire inside as a rally over the death of George Floyd in Minneapolis turned violent.

Portland police said at least one shooting was tied to the protest, although details weren’t immediately released. A fire built from cardboard boxes and other items burned in the middle of a street downtown and video appeared to show people breaking into Pioneer Place mall and taking bags from a Louis Vuitton store. Police said they deployed gas after people threw projectiles at them. Firefighters were responding to the fires, police said.

Police via Twitter labeled the event a riot before midnight and closed several streets. “Disperse now or you will be subject to gas, projectiles, and other means necessary for dispersal,” police said.

Earlier, thousands of people filled Peninsula Park in North Portland for a peaceful evening vigil that lasted three hours, The Oregonian/OregonLive reported. Hundreds then began marching through downtown to Portland police headquarters outside the Multnomah County Justice Center. There was scattered vandalism along the route.

People were protesting the death of 46-year-old Floyd, a black man who died in Minneapolis after a white officer pressed his knee into his neck as Floyd begged for air. That officer was arrested on criminal charges Friday.

Portland Mayor Ted Wheeler tweeted a plea to protesters to remain peaceful and said at about 11:50 p.m. that while he had left Portland to attend to his dying mother, he was heading back to the city.

“I am with family to prepare for her final moments. This is hard, this is personal, but so is watching my city get destroyed. I’m coming back NOW,” he said, adding that police and community leaders would be hearing from him.

“Portland, this is not us,” he wrote earlier on Twitter. “When you destroy our city, you are destroying our community. When you act in violence against each other, you are hurting all of us. How does this honor the legacy of George Floyd?”

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