Portland, Ore., police reportedly made 13 arrests on Saturday in connection with dueling demonstrations between far-right demonstrators and anti-fascist counterprotesters.

Police said they seized weapons including shields, metal and wooden rods, knives, chemical sprays, and a stun gun from participants, who included anti-fascists and members of the far-right Proud Boys organization and numbered about 1,200 at the peak of the demonstrations, according to The Associated Press.

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Police added that there were at least six minor injuries and that one person was transported to a hospital.

Saturday marked the latest clashes between the leftist and right-wing groups, the latter of which largely entered the city from out of state and vowed to continue returning to the city until Mayor Ted Wheeler (D) takes broader action to crack down on anti-fascist, or antifa, counterdemonstrators, according to the AP.

President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE trained a national spotlight on the city ahead of the demonstrations, tweeting that “major consideration is being given to naming ANTIFA an ‘ORGANIZATION of TERROR.’” Antifa is not centrally organized, and there is no process in place for the federal government to designate domestic groups terrorist organizations.

“I’m grateful that this was largely a peaceful event,” Wheeler told reporters at a news conference, according to Reuters.

“Police did an exemplary job of de-escalating the situation, keeping the extremists on both sides separated for the most part, and preventing people who wanted to engage in acts of violence from confronting each other,” he added.

Portland Police Chief Danielle Outlaw said charges against those in custody would include disorderly conduct, interfering with police, resisting arrest and unlawful use of a weapon.

“The disruptions were held to a very small area of downtown Portland,” she added.