In photos: Portland protests unrest amid presence of federal agents

Protests persisted in Portland, Oregon Tuesday night as federal law enforcement officers in camouflage again discharged tear gas in response to ongoing civil unrest following the May 25 death of Minneapolis man George Floyd.

Why it matters: While most of the U.S. has seen a slowdown in demonstrations after weeks of Black Lives Matter protests, Portland has shown continued momentum for the cause.

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The state of play: Following criticism the Trump administration's action in Portland amid reports that federal law enforcement officers in unmarked vehicles detained Portland protesters without explanation, Acting Homeland Security Secretary Chad Wolf said federal agents "will not retreat" from the city.

• The U.S. Attorney for the District of Oregon called for an inspector general investigation into those reports Friday. Oregon Attorney General Ellen Rosenblum said Friday night that her office opened a criminal investigation into the events that surrounded one protester's injuries. She filed another suit in Federal District Court in pursuit of a restraining order, accusing federal agents of unlawful tactics.

A look at the scene:

Federal officers operate amid tear gas while clearing the street in front of the Mark O. Hatfield U.S. Courthouse on in Portland, Oregon, on July 21. Photo by Paula Bronstein/Getty Images

Protesters chat gathered in front of the Mark O. Hatfield U.S. Courthouse on July 20. Photo: Paula Bronstein/Getty Images

Protesters in front of the Multnomah County Justice Center on July 18. Photo: Ankur Dholakia/AFP via Getty Images

Protestors gather en masse to express outrage over federal interference on July 18. Photo: Ankur Dholakia/AFP via Getty Images

Federal officers preparing to disperse a crowd of protestors on July 18. Photo: Mason Trinca/Getty Images

A protester spray painting in front of the the U.S. District Court building on July 18. Photo: Mason Trinca/Getty Images

Protesters stationed outside the Multnomah County Justice Center on July 18. Photo: Mason Trinca/Getty Images

Tear gas being deployed on the steps of the U.S. District Court building on July 18. Photo: Mason Trinca/Getty Images

Protestors prepare for conflict with federal law enforcement on July 18. Photo: Mason Trinca/Getty Images