A new round of clashes erupted between federal agents and demonstrators protesting against racism and police brutality, in Portland, on the night from Monday to Tuesday.
Federal agents and other law enforcement officers deployed tear gas against protesters in a bid to disperse them.
On Friday, federal agents used tear gas and fired less-lethal ammunition at protesters in Portland, with Oregon Governor Kate Brown severely condemning the actions of the federal government.
She slammed the move as a 'blatant abuse of power,' with the state's justice department announcing that it would be suing to halt the practice on Friday evening.
Federal officers were deployed in Portland under the Trump administration's new executive order to protect federal monuments and buildings.