Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. On Day 100 of Protests, Portland Police Declare A Riot VOA News Police in Portland, in the northwestern U.S. state of Oregon, declared a riot Saturday night after demonstrators threw several Molotov cocktails into the street. The police told the crowd of hundreds their demonstration was considered a riot and ordered the people to disperse immediately. In Oregon, a riot is defined as six or more people engaging in "tumultuous and violent conduct" that creates "a grave risk of causing public alarm." It's illegal for police in Oregon to use tear gas unless a gathering has been declared a riot. Police said protesters threw multiple "fire bombs" and that at least one person was injured. Twitter footage from protesters and members of the media showed a man who appeared to be a protester with his feet and lower legs ablaze. .