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. Federal Agents Use Tear Gas to Clear Portland Protest Associated Press PORTLAND, ORE. - Thousands of protesters gathered outside the federal courthouse in Portland, Oregon, into the early hours of Saturday shooting fireworks at the building as plumes of tear gas, dispensed by U.S. agents, lingered above. The demonstration went on for hours until federal agents entered the crowd around 2:30 a.m. and marched in a line down the street, clearing remaining protesters with tear gas at close range. They also extinguished a large fire in the street outside the courthouse. The Federal Protective Service had declared the gathering as "an unlawful assembly" and said that officers had been injured. As the crowd dispersed, someone was found stabbed nearby, Portland police said. The person was taken to a hospital and a suspect was taken into custody. By 3 a.m., most demonstrators had left with only some small groups roaming the streets. .