PORTLAND, Ore. (AP) — Police in Portland, Oregon, said Saturday they arrested four people after declaring a riot Friday night when protesters smashed windows, burglarized businesses and set multiple fires during demonstrations that started after police fatally shot a man while responding to reports of a person with a gun. Police said they dispersed the crowd so firefighting crews could douse fires before they spread in extreme fire hazard conditions. The vandalism downtown came after the police shooting earlier Friday and also was part of vigils and demonstrations already planned for the night in the name of people killed in police shootings nationwide. They include 13-year-old Adam Toledo of Chicago and Daunte Wright, a Black man in a Minneapolis suburb. Deputy Police Chief Chris Davis told reporters a white man in his 30s had been shot and killed in Portland by police. The man was pronounced dead at the scene in Lents Park, a leafy, residential neighborhood of the city.