A throng of violent protesters set a dumpster alight and hurled rocks at federal agents outside an Immigration and Customs Enforcement building in Portland, Ore. according to police and video of the chaotic scene.<br />Footage of the unrest shows a dumpster ablaze outside a boarded-up ICE building, where a team of Federal Protective Service agents in riot gear responded at about 10:30 pm Wednesday after it was pushed in front of the building.<br />Federal officers responded with tear gas and pepper-ball rounds as police advanced on the demonstrators.<br />At one point, a large explosion occurs near the dumpster, apparently caused by fireworks.<br /><br />Portland cops responded to the scene a short time later along with firefighters to extinguish the burning dumpster, police spokeswoman Officer Melissa Newhard said.<br />The protesters, who are not seen in the footage, were throwing rocks at the federal agents.<br />No injuries were reported to cops, but one person was arrested at the scene. Karl Nilsson, was charged with attempted assault on a public safety officer, disorderly conduct and riot.
